H1 drop box appointment time

Have H1 Dropbox appointment on Jan 9,2023 early AM in Chennai . My flight is delayed and I am going to be reaching later than I expected.

Is it mandatory to drop documents exactly at scheduled time or is it ok to drop any time on same day! Someone told me it’s ok to drop anytime on same day as your appointment. Is that right ?

Appreciate the guidance

You should be okay dropping at a later time as far as it is same date.