Delayed observance of יום השואה והגבורה YOM HAʾŜOA VE-HAGEVURA when כ״ז בניסן 27th 𝑜𝑓 Nisan falls on Sunday.

כ״ח בניסן28th of Nisan

https://thisjewish.day/article/01-28-yom-ha%C5%9Doa-observed