Shalom, today because it is a famous Christian date, is it forbidden to study torah? or gemoras?
There are differant customs regarding learning torah from nightfall until midnight. Chassidim and some others have the custom not to learn then, however the rest of the night and daytime are fine. In fact according to the Chasam Sofer the reason for not learning then was in order to sleep until chatzos and then get up and learn the rest of the night. Others including the Ashkenazim and Lituanian Yeshivos lern regular in this day.