single icalendar rule for 1st weekday of multiple months every year?

问题

Is it possible to specify an event to occur on the 1st weekday of multiple months every year in a single RRULE? Using January and June as a test case, my initial attempt was:

FREQ=YEARLY;BYDAY=MO,TU,WE,TH,FR;BYMONTH=1,6;BYSETPOS=1

but BYSETPOS reduces the set down to January only. I think splitting it out into multiple rrules would work, but it would greatly increase the complexity of this area of my app so I was hoping for one rrule with a yearly freq.

Thanks!

回答1:

You could try:

FREQ=MONTHLY;BYDAY=MO,TU,WE,TH,FR;BYSETPOS=1;BYMONTH=<SELECTED_MONTHS_FROM_UI>

Please note the order of options is different.

来源：https://stackoverflow.com/questions/22467453/single-icalendar-rule-for-1st-weekday-of-multiple-months-every-year