Calculate days, months and years between two dates in Google Sheets: DATEDIF formulas

Today's blog post is all about figuring out the difference between two dates in Google Sheets. You will see lots of DATEDIF formulas to count days, months and years, and learn how NETWORKDAYS is used to count workdays only even if your holidays are based on a custom schedule.

Lots of spreadsheets users find dates confusing, if not extremely difficult, to handle. But believe it or not, there are a few handy and straightforward functions for that purpose. DATEDIF and NETWORKDAYS are a couple of them.

DATEDIF function in Google Sheets

As it happens with functions, their names suggest the action. The same goes for DATEDIF. It must be read as date dif, not dated if, and it stands for date difference. Hence, DATEDIF in Google Sheets calculates the date difference between two dates.

Let's break it down to pieces. The function requires three arguments:

=DATEDIF(start_date, end_date, unit)
  • start_date – a date used as a starting point. It must be one of the following:
    • a date itself in double-quotes: "8/13/2020"
    • a reference to a cell with a date: A2
    • a formula that returns a date: DATE(2020, 8, 13)
    • a number that stands for a particular date and that can be interpreted as a date by Google Sheets, e.g. 44056 represents August 13, 2020.
  • end_date – a date used as an endpoint. It must be of the same format as the start_date.
  • unit – is used to tell the function what difference to return. Here's a full list of units you can use:
    • "D" – (short for days) returns the number of days between two dates.
    • "M" – (months) the number of full months between two dates.
    • "Y" – (years) the number of full years.
    • "MD" – (days ignoring months) the number of days after subtracting whole months.
    • "YD" – (days ignoring years) the number of days after subtracting whole years.
    • "YM" – (months ignoring years) the number of complete months after subtracting full years.

Note. All units must be put to formulas the same way they appear above – in double-quotes.

Now let's piece all these parts together and see how DATEDIF formulas work in Google Sheets.

Calculate days between two dates in Google Sheets

Example 1. Count all days

I have a small table to track some orders. All of them have been shipped in the first half of August – Shipping date – which is going to be my start date. There's also an approximate delivery date – Due date.
A small table with orders.

I'm going to calculate days – "D" – between shipping and due dates to see how long it takes for items to arrive. Here is the formula I should use:

=DATEDIF(B2, C2, "D")
Calculate days between two dates in Google Sheets.

I enter the DATEDIF formula to D2 and then copy it down the column to apply to other rows.

Tip. You can always calculate the entire column at once with a single formula using ARRAYFORMULA:

=ArrayFormula(DATEDIF(B2:B13, C2:C13, "D"))
Array formula to calculate days between two dates in Google Sheets.

Example 2. Count days ignoring months

Imagine there are a few months between two dates:
How many months there are between dates?

How do you count only days as if they belonged to the same month? That's right: by ignoring full months that have passed. DATEDIF calculates this automatically when you use the "MD" unit:

=DATEDIF(A2, B2, "MD")
Calculate days between two dates in Google Sheets after subtracting months.

The function subtracts elapsed months and counts remaining days.

Example 3. Count days ignoring years

Another unit – "YD" – will aid for when dates have more than a year between them:

=DATEDIF(A2, B2, "YD")
Subtract years and calculate remaining days between two dates in Google Sheets.

The formula will subtract years first, and then calculate remaining days as if they belonged to the same year.

Count working days in Google Sheets

There is a special case when you need to count only working days in Google Sheets. DATEDIF formulas won't be much of a help here. And I believe you will agree that subtracting weekends manually is not the most elegant option.

Luckily, Google Sheets has a couple of not-so-magic spells for that :)

Example 1. NETWORKDAYS function

The first one is called NETWORKDAYS. This function calculates the number of working days between two dates excluding weekends (Saturday and Sunday) and even holidays if necessary:

=NETWORKDAYS(start_date, end_date, [holidays])
  • start_date – a date used as a starting point. Required.

    Note. If this date is not a holiday, it is counted as a working day.

  • end_date – a date used as an endpoint. Required.

    Note. If this date is not a holiday, it is counted as a working day.

  • holidays – this one is optional for when you need to point out specific holidays. It must be a range of dates or numbers representing dates.

To illustrate how it works, I will add a list of holidays that take place in-between shipping and due dates:
A table of orders and US holidays.

So, column B is my start date, columns C – end date. Dates in column E are the holidays to consider. Here is how the formula should look:

=NETWORKDAYS(B2, C2, $E$2:$E$4)
Count working days in Google Sheets.

Tip. If you're going to copy the formula to other cells, use absolute cells references for holidays to avoid errors or incorrect results. Or consider building an array formula instead.

Have you noticed how the number of days decreased compared to the DATEDIF formulas? Because now the function automatically subtracts all Saturdays, Sundays, and two holidays that take place on Friday and Monday.

Note. Unlike DATEDIF in Google Sheets, NETWORKDAYS counts start_day and end_day as workdays unless they are holidays. Hence, D7 returns 1.

Example 2. NETWORKDAYS.INTL for Google Sheets

If you have a custom weekend schedule, you will benefit from another function: NETWORKDAYS.INTL. It lets you count working days in Google Sheets based on personally set weekends:

=NETWORKDAYS.INTL(start_date, end_date, [weekend], [holidays])
  • start_date – a date used as a starting point. Required.
  • end_date – a date used as an endpoint. Required.

    Note. NETWORKDAYS.INTL in Google Sheets also counts start_day and end_day as workdays unless they are holidays.

  • weekend – this one is optional. If omitted, Saturday and Sunday are considered to be weekends. But you can alter that using two ways:
    • Masks.

      Tip. This way is perfect for when your days off are scattered all over the week.

      Mask is a seven-digit pattern of 1's and 0's. 1 stands for a weekend, 0 for a workday. The first digit in the pattern is always Monday, the last one – Sunday.

      For example, "1100110" means that you work on Wednesday, Thursday, Friday, and Saturday.

      Note. The mask must be put in double-quotes.

    • Numbers.

      Use one-digit numbers (1-7) that denote a pair of set weekends:

      Number Weekend
      1 Saturday, Sunday
      2 Sunday, Monday
      3 Monday, Tuesday
      4 Tuesday, Wednesday
      5 Wednesday, Thursday
      6 Thursday, Friday
      7 Friday, Saturday

      Or work with two-digit numbers (11-17) that denote one day to rest within a week:

      Number Weekend day
      11 Sunday
      12 Monday
      13 Tuesday
      14 Wednesday
      15 Thursday
      16 Friday
      17 Saturday
  • holidays – it is also optional and is used to specify holidays.

This function may seem complicated because of all those numbers, but I encourage you to give it a try.

First, just get a clear understanding of your days off. Let's make it Sunday and Monday. Then, decide on the way to indicate your weekends.

If you go with a mask, it will be like this – 1000001:

=NETWORKDAYS.INTL(B2, C2, "1000001")

But since I have two weekend days in a row, I can use a number from the tables above, 2 in my case:

=NETWORKDAYS.INTL(B2, C2, 2)

Then simply add the last argument – refer to holidays in column E, and the formula is ready:

=NETWORKDAYS.INTL(B2, C2, 2, $E$2:$E$4)
Set your custom weekends using NETWORKDAYS.INTL in Google Sheets.

Google Sheets and date difference in months

Sometimes months matter more than days. If this is true for you and you prefer getting the date difference in months rather than days, let Google Sheets DATEDIF do the job.

Example 1. The number of full months between two dates

The drill is the same: the start_date goes first, followed by the end_date and "M" – that stands for months – as a final argument:

=DATEDIF(A2, B2, "M")
Figure out the number of months between two dates.

Tip. Don't forget about the ARRAUFORMULA function that can help you count months on all rows at once:

=ARRAYFORMULA(DATEDIF(A2:A13, B2:B13, "M"))

Example 2. The number of months ignoring years

You may not need to count months throughout all years in-between start and end dates. And DATEDIF lets you do that.

Just use the "YM" unit and the formula will subtract whole years first, and then count the number of months between dates:

=DATEDIF(A2, B2, "YM")
Calculate the number of months between two dates ignoring elapsed years.

Calculate years between two dates in Google Sheets

The last (but not least) thing to show you is how Google Sheets DATEDIF calculates the date difference in years.

I'm going to calculate the number of years couples have been married based on their wedding dates and today's date:
How many years has passed since their weddings?

As you may have already guessed, I will use the "Y" unit for that:

=DATEDIF(A2, B2, "Y")
Calculate Google Sheets date difference in full years.

All these DATEDIF formulas are the first to try when it comes to calculating days, months, and years between two dates in Google Sheets.

If your case can't be solved by these or if you have any questions, I encourage you to share them with us in the comments section below.

93 comments

  1. I am currently using =NETWORKDAYS(F9,G9,Holidays) I need to calculate number of working days between 2 dates, excluding weekends and holidays. The problem is I am working working with teams from 3 different holidays and need to apply each country's holidays accordingly.

    The data needs to look up whether the working dates set are for AU, UK, or US team. And depending on the team, applies holidays to it. And giving the final working days for that particular team.

    Start Date: Column G / End Date: Column H

    Team Names:
    AU
    UK
    US

    Holiday Dates:
    AU is P1:P10
    UK is Q1:Q11
    US is R1:R12

    How do i construct the formula?

    1. Hello CP,

      For me to be able to help you, please share a small sample spreadsheet with us (support@apps4gs.com) with 2 sheets: (1) a copy of your source data (2) the result you expect to get. I kindly ask you to shorten the tables to 10-20 rows. The result sheet is of great importance as it gives us a better understanding than any text description.

      Note. We keep that Google account for file sharing only and don't monitor its Inbox. Do not email there. Once you share the file, just confirm by replying to this comment.

      I'll look into your task and try to help.

  2. round of 30 days in each month for google sheets, whether it is 31 days or 30 or 28

    1. Hello gan,

      For me to be able to help you better, please describe the task in detail: specify what original records you have (full dates? the number of days?) and how you need to see the result.

  3. I could really use some help.

    I have team holiday dates (start date, end dates), which I then need to calculate how many of those dates fall within a date range (term).

    I'm sure this must be possible, but I'm not sure of the best way to go about it. Can you help?

    Thanks

  4. I'm trying to transition my Excel formula to Google Sheets to show year, month, day from when an employee started to the end of the year.
    Start date: Y5
    End date: $Z$3
    Output Col ZZ: XXy, XXm, XXd
    =IF(ISERROR(DATEDIF(Y5,$Z$3,"Y")&"y, "&DATEDIF(Y5,$Z$3,"YM")&"mo, "&DATEDIF(Y5,$Z$3,"MD")&"d "),@”-@“,((DATEDIF(Y5,$Z$3,"Y")&"y, "&DATEDIF(Y5,$Z$3,"YM")&"mo, "&DATEDIF(Y5,$Z$3,"MD")&"d ")))

    How can I "translate" this into Google. I keep getting a "formula parse error"
    Thank you so much!

    1. Hello Gail,

      For Google Sheets, try this formula:
      =IFERROR(DATEDIF(Y5,$Z$3,"Y")&"y, "&DATEDIF(Y5,$Z$3,"YM")&"mo, "&DATEDIF(Y5,$Z$3,"MD")&"d","-")

  5. Hi, I am trying to create a DIFOT type report from a large date range. Shipping date/time being the Delivery for this metric.

    What I would like to show is the time frame between the two dates it is taking to ship. There are a few variables.

    1. Exclude public holidays which I think I understand from your examples.
    2. Exclude the Weekend. The Weekend clock cuts off at Friday 12pm (shipment cut off), Start the clock again Monday 7am when work starts. So any orders that are created between 12pm Fridays and before 7am Monday we deduct that time frame.

    Thanks. Appreciate any help you have to offer.

    1. Hello Jackie,

      For me to be able to help you, please share a small sample spreadsheet with us (support@apps4gs.com) with 2 sheets: (1) a copy of your source data (2) the result you expect to get. The result sheet is of great importance as it gives us a better understanding than any text description.
      I kindly ask you to shorten the tables to 10-20 rows.

      Note. We keep that Google account for file sharing only and don't monitor its Inbox. Do not email there. Once you share the file, just confirm by replying to this comment.

      I'll look into your task and try to help.

  6. hi i would like to ask. if it is possible to calculate a cell with multiple dates. with delimiter " , " if possible the formula i would like to input is datedif.

    1. Hi michael,

      You will still need to split the text, even though with a formula. The SPLIT function will help you do that. You can wrap it in other functions and build a longer formula that will split dates and work with the required ones only.

  7. Hi,
    For the Data Validation tool in Google Sheets, is there a way or a trick to only select the range that has data instead of the entire column? I like to apply the rule to a specific Data Range (Apply to Range).
    Selecting the Column, Data > Data Validation selects the entire Column including the Header, Data and Blank cells in the column. Example: 'Sheet 1'!C1:C2000.

    Now I have to manually edit/select the Data Range on the Select the Data Range modal that appears.

    1. Hi Ted,

      I'm afraid you have to either select the required range first and then open Data Validation (it will automatically pick up the selected range for 'apply to') or do what you described.

  8. When using the following formula: NETWORKDAYS(C2, D2, Events!B2:B) using the same start-date and end-date such as 1/9/2024 in cell "C2" and 1/9/2024 in cell "D2"

    I get a result of 1, but I was expecting a result of 0. What I need to formula to do is calculate the number of days between two dates and excluded dates in a google sheet called "Events" with specific dates listed in cells B2 and below. Any help is most appreciated.

    1. Hello J. Clark,

      It's interesting because I'm getting 0 with these dates as an example. For me to be able to help you better, please share an editable copy of your spreadsheet with us (support@apps4gs.com) with (1) a copy of your source data (and the Events sheet) (2) the result you expect to get. I kindly ask you to shorten the tables to 10-20 rows.

      Note. We keep that Google account for file sharing only and don't monitor its Inbox. Do not email there. Once you share the file, just confirm by replying to this comment.

      I'll look into it and try to help.

      1. Hello Natalia,

        I've shared a copy of my Google Sheets with you. Any help is most appreciated.

        1. Thank you for sharing your file!

          So apparently I got 0 because I have another date format 😅 My 1/9/2024 is September 1, 2024, which is Sunday. That's why I got 0.

          While yours is January 9, 2024, which is Tuesday. If the date is neither holiday nor weekend, it's counted as a working day (I pointed it out in the article). Hence, you've got 1.

          1. Hello Natalia,

            What would you recommend using to count days between two dates and get a result of 0 if the dates match? I also need to exclude weekends and holidays or special event dates.

  9. I would like to calculate number of days between today and a given future date.
    For example between today and 07/02/24.
    So every day I open the calcsheet I can se how many days are remaining to the given date

  10. From 8/1/2023 to 10/31/2023, how can I show it's 3 months, instead of 2? Because it we count days, 08/01-08/31, 09/01-09/30, and 10/01 - 10/31 are three whole months.

    thanks!

    1. Hi! Remember, the date 10/31/2023 is 10/31/2023 00:00:00. Therefore, that day does not count in the date interval. Your date interval ends on 10/30/2023 23:59:59

  11. Hi! I need to calculate 30 days from 12/1/2023, but if the result day falls on a Saturday or Sunday, I need it to show as the Friday prior. For instance, 30 days from 12/1/2023 is Saturday 12/30/23, I need my spreadsheet to show 12/29/23 instead. How can I do this? Thank you!

    1. Hi Natalia,

      You need to use the nested IF function incorporating WEEKDAY in order to check the week day:
      =IF(WEEKDAY(A2+B2)=1,(A2+B2)-2,IF(WEEKDAY(A2+B2)=7,(A2+B2)-1,A2+B2))

      In this formula, A2 is you start date (12/1/2023) and B2 is the number of days to add.

  12. Hello, very interesting, thankyou.
    I have a question slightly off topic. Maybe you could help anyway?

    I have a google form where the start date and end date are entered.

    What I need is for the response sheet to autopopulate the dates individuelly

    So if start date is 06.08.2023 and end date is 08.08.3023 the response sheet input needs to be
    06.08.2023
    07.08.2023
    08.08.2023
    I think maybe there isn't a direct way to do this but is it possible at all?
    Very gratefull for any help.
    Thanks.
    Andy.

    1. Hello Andy,

      I'm sorry, we don't work with Google Forms and don't know how they record the responses to Sheets.

  13. Hi this is the formula i used to get the age =DATEDIF(J3,TODAY(),"Y")

    D.O.B Age today
    Jul-04-1994 28
    Jan-14-1977 46
    Jan-02-1988 35

    its not correct its calulating what the age would be this year. what is the formula to calulate number of years and months as at todays date?

    1. Hi Gurbax,

      The formula and its results look correct to me.
      Jul-04-1994 will be 29 this year. But since it's not July yet, it returns 28. The next two are from January, so they already show this year's age.

  14. Hi.

    Can you please help me with formula to add 3 months (Quarterly) in excel.

    Example,

    14 May 2023

    after adding 2 quarter.

    14 Nov 2023.

  15. Hi Natalia,

    How do I get it to include today as a working day? So for example, start of project was today and it ended by EOD. When I enter 4/21/23 as both start and end date, it results in 0 days. Even though obviously 1 work day was used.

      1. I have the same question that Betty posed. I would like the data count to be inclusive of the start date and end date. In addition to Betty's example, if I start a task on 5/1 and complete EOD 5/2, it should reveal 2 days. Formula is currently: =DATEDIF(B7,B8,"D"). B7 is start date, B8 is end date.

        1. Hello Jared,

          To include the start day in the result, you need to add 1 to your formula:
          =DATEDIF(B7,B8,"D")+1

  16. How can I calculate the number days for each month separately when I have a start and finish date that over laps in months. For instance if my star date is 4/15/23and my finish date 5/12/23. How can I get Google sheet to tell me there are 10 business days in April and 10 business days in May? If we can somehow figure out weekend and holidays to be dis-included that would be great.

      1. But how can I calculate the number days for each month separately when I have a start and finish date that over laps in months. For instance if my star date is 4/15/23and my finish date 5/12/23. How can I get Google sheet to tell me there are 10 business days in April and 10 business days in May?

        1. Thank you for the clarification, Juan.

          Here's a formula for April:
          =NETWORKDAYS(A2,EOMONTH(A2,0))
          And here's for May:
          =NETWORKDAYS(EOMONTH(B2,-1),B2)

  17. Hi Natalia,

    I would like to calculate resolution time of a certain task based from a given schedule to take out hours of operation including weekends:
    Start Date: 3/1/2023 1:16:20
    End Date: 3/28/2023 16:00:23
    Schedule of Agent during weekdays: 8:00 AM - 5:00 PM
    Thanks in advance for the help.

    1. spreadsheet shared

      1. Thank you for sharing the file right away, Candy.

        I put the formulas to F & G columns, formatted one as duration and another as days. Please let me know if it helps.

        1. Hi Natalia,

          Any chance you can help me with the negative #s on my file pls? Same spreadsheet.

          1. Hi Candy,

            There's another formula available in your file, please take a look. Sheet Ablebits, column J. I hope this will help you!
            I had to create other smaller helper formulas in columns E-I to break down the calculation process. You can hide them or gather everything into one large complex formula.

            1. Thank you so much Natalia.
              There are still a few items where it shows negative on my main file when i tried the calculation used on the Applebits sheet. I've added it on that tab as well. Hoping you could check again. Sorry about that.

              1. Hello Candy,

                Sorry for the late reply. I'm having difficulties creating one formula for all rows since I don't see a common pattern between them. I have to ask you a few questions:

                1. Do you need to take into account the time spent on weekends? There are lots of entries when the task starts/ends on weekend.
                2. What about rows like 36? The task started on the weekend and ended on Monday before the person's working hours. What do you need to count in this case?
                3. What if the task ends before the scheduled hours? Like in row 58. Do you need to count all hours spent on the task or only those during the scheduled hours?

        2. Thanks for your help. Although i see negative computation on my file. Kindly further assist me on this.

  18. Can you please provide exact months and days for two difference date like 14 March 2038 with 27 March 2023.

  19. Hi,

    I would like to calculate years and months between two dates, but would like the months to show as a decimal of a year.

    So, say A2 is a Start Date of 06-30-2016 (that's MM-DD-YYYY format), and cell B2 is End Date of 12-31-2022. That is 6 years, 6 months. How can I get Google Sheets to show 6.5?

  20. Hi Ms. Natalia,
    Good day!

    How to formulate this, continues the count of days if undelivered from the ATA and stop the count of days if delivered.
    I used the below formula but if there is no delivery date, it returns to zero.

    =if($H1105="",, MAX(0,DAYS($I1105,MIN(TODAY(),$H1105))))

    H = Arrival date at Port
    I = Date delivered

    I just want to know the number of days that are still at the port and if it stops once delivered.

    Many thanks

      1. Hi Ms. Natalia,
        Thank you so much

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