I have a problem figuring out How to calculate used vacation time between two dates if I have 1 working Saturday. I try with NETWORKDAYS.INTL and I have 1

^{st}and 2

^{nd}parameter, start and end date, holidays also, but weekend parameter makes me problems. If I say for weekend parameter, use option 1 (Saturday and Sunday) and vacation took 3 weeks, then I have 1 working Saturday (every 1

^{st}Saturday of the month is the working one) in to calculate, so I can’t use NETWORKDAYS.INTL properly. Can someone help me with a solution for this problem?

Many thanks,

Vladimir