Because this isn’t one of the 4 important fasts there is much more leniency to not fast if one is sick or just had a baby etc. At the direction of their...

Both Men and Women are obligated to hear the megillah read by day and night.

Purim is always the 14th of Adar י״ד אֲדָר Which this year falls on the night of March 2nd and the day of March 3rd 2026

The megillah of Esther is read both by night of purim and then the following day. Both Men and Women are obligated to hear it both times.