# Series of dates by weekends

=WORKDAY.INTL(A1,1,"1111100")

To generate a dynamic series of dates that are weekends only (Saturday and Sunday), you can use the WORKDAY.INTL function. In the example shown, the date in B5 is a hardcoded start date. The formula in B6 is:

=WORKDAY.INTL(B5,1,"1111100")

This returns only Saturdays or Sundays as the formula is copied down. The list is dynamic – when start date is changed, the new dates are generated.

### How the formula works

The WORKDAY.INTL function is normally used to generate dates that are workdays. For example, you can use WORKDAY.INTL to find the next workday that is not a weekend or holiday, or the first workday 10 days from now.

One of the the arguments provided to WORKDAY.INTL is called "weekend", and indicates which days are considered non-working days. The weekend argument can be provided as a number linked to a preconfigured list, or as a 7-character code that covers all seven days of the week, Monday through Saturday. This example uses the code option.

In the code, 1's represent weekend days (non-working days) and zeros represent work days, as illustrated with the table in D4:K5. We only want to to see Saturdays and Sundays in the output, so use 1 for all days Monday-Friday, and zero for Saturday and Sunday:

=WORKDAY.INTL(B5,1,"1111100")

The days argument is input as 1. As the formula is copied down, the WEEKDAY.INTL function returns the next date that is either Saturday or Sunday.

### Another way

If you have an older version of Excel without the WEEKDAY.INTL function, you can an alternative formula based on the WEEKDAY function:

By default, WEEKDAY will return 1 for Sunday and 7 for Saturday. If the result is 7, the result is B5+1 (Sunday). If not, the result is

B5+(7-WEEKDAY(B5))

Which resolves like this, depending on day of week:

B5+(7-2) = B5+5 <-- Mon

B5+(7-3) = B5+4 <-- Tue

B5+(7-4) = B5+3 <-- Wed

B5+(7-5) = B5+2 <-- Thu

B5+(7-6) = B5+1 <-- Fri

*Note: you'll need to supply a date at least one day before the first Saturday you want to generate.*

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