The date given for Shushan Purim this year is Sunday,
March 27, which corresponds to 16 Adar II. Since the
Megillah may not be read after 15 Adar (II) (Megillah
2a), this is not possible: in walled cities, Shushan
Purim would be observed on Friday, 14 Adar (II).
Similarly, if Purim falls on Shabbat, then un-walled
cities celebrate on 15 Adar (II). So, Shabbat should
be labeled as being a holiday (no Av HaRachamim or
Tzidkatcha), but both Purim and Shushan Purim fall on
Friday this year...