Two celebrations - many days

If you do a search on the internet for what day Mother's or Father's Day is on, you will receive a list of many different dates for different countries. Here in the States the days are on the second Sunday in May and the third Sunday in June respectively. Since the Swedish Mother's Day also is in May (but on the third Sunday), I simply buy the card for my mother shortly before the US day is and mail it a week after. The card for my father though, I buy in June and hold on to until November, since the Swedish Father's Day is on the third Sunday in November! :-)