Verified answer

On Thursday at 1 PM I will be taking leave from the office for the rest of the day, and on Friday I will be out for the entire day.

- or -

This next Thursday at around 1 PM, I will be taking leave from the office for the rest of the day. And then on Friday I will be out for the entire day.

I will need a half day leave to office on THursday, starting at 1pm, and then a full day leave on Friday.

or

I will need to leave to office from Thursday at 1pm, through Friday.

I need to take leave from Thursday at 1pm and all day Friday.

you should state why. Managers dont generally like their employees TELLING THEM that for no stated reason they will be taking a half a day off.

I'd say

(Bosses Name)

I'm writing to inform you that, because of (insert reason here) I will need a day and a half of leave, half a day on Thursday starting at 1:00pm and all day on Friday

Thank you