A few of my sorority sisters and I have birthdays in February. My birthday fell on a Tuesday, but I had bronchitis that day
so I had to wait to celebrate until the weekend. My pledge class sister who had graduated the previous May returned for that weekend. A bunch of us went out that Friday night including a sister whose birthday wasn't until Saturday. The local bar wouldn't let her in because she still wasn't legal.
We went to another bar until she turned 21. Most of my friends were not yet 21 so they couldn't join us, but it was fun anyway.