Trending @Infosys; Minimum Wfo is 3.50 hours so does that mean 3 hrs 30 mins or 3 hrs 50 mins?

If I wfo for 4 hrs and apply od for remaining hrs on next day, will my wfh balance deducted? I have wfh in days.

4 hr kr lo for safety

3 hrs 30 min

3hrs 30 mins

3 hr 30 min

I take 4 hrs including buffer

It is 3 hours 50 minutes

You can do 1 hour also but you need to apply OD next Day