Geçen cumartesi parka gittim.
- I went to the park last Saturday.
Cumartesiden beri buradayım.
- I've been here since Saturday.
Tom said he had to work on Saturday.
- Tom said that he had to work on Saturday.
Tom said that he had to work on Saturday.
- Tom said he had to work on Saturday.
The seventh day of the week is Saturday.
- The 7th day of the week is Saturday.
... And so I had a series of meetings on Saturdays ...