u/GoodDot6268

Hello, I have a question. Now im working on topic of time determiners and i have two sentences:

On Tuesday we go to restaurant with friends - Во вторник мы идём в ресторан с друзьями (19)

On Thursday i need to call - Мне надо позвонить в четверт (21)

Is there any rule about where do you put "on thursday" etc.? they are in different places in both places and i'd like to know why