ANSWER:

Specifying nights like this for worship is not permissible as it’s an innovation.

Prophet salla Allahu alaihi wa sallam used to fast both these days and it’s highly recommended for us to fast these days as well.

It is said our deeds are presented to allah on every Monday and Thursday night.My question is suppose Thursday will it be Wednesday after maghrib i.e Thursday or Thursdays maghrib i.e.Friday ? Atleast I want to pray tahajud when my deeds are to be presented to allah so please tell me when is it. Sundays night i.e.Mondays morning or Mondays night i.e.Tuesdays morning and same on Thursday.