The Timings for I’tikaaf
Q. What is the minimum period for I’tikaaf?
A. It is necessary to keep fast in the waajib I’tikaaf, so the least time for it is a day. Thus, to vow for I’tikaaf of less than a day, for a few hours or for the night, is not right.
The time limit for I’tikaaf which is sunnah mu’akkadah is the last 10 days of Ramadaan.
For nafl I’tikaaf there is no limit. It may even be for 5 or 10 minutes. If one when entering the mosque makes the niyyah for I’tikaaf each time, it will bring plenty of blessings for several I’tikaaf each day.