Fasting: Can a Shī‘a Break Fast with Sunnī Timings in Public Settings?

Practical Laws of Islam as per the teachings of Imam Khamenei

Fasting: Can a Shī‘a Break Fast with Sunnī Timings in Public Settings?

English:

Question #791:

Is it permissible to follow Sunnīs in their timings for breaking the fast while one attends public or official gatherings and the like? What is one’s duty if s/he thinks that doing so cannot be counted as one of the instances of dissimulation and no compulsion is involved?

Answer #791:

It is not permissible for a mukallaf to follow others in breaking the fast unless there is shar‘ī evidence that it is maghrib time. If it is a case of dissimulation, they can break their fast but they should make it up in qaḍā’. Otherwise, they cannot break their fast before they are sure through sense [sight] or there is shar‘ī evidence that the day has ended and the night has begun.

-Imam Khamenei, Practical Laws of Islam, Importance and Conditions of Fasting