How much time before and after zawal is disliked

Question

How long, at midday, before and after the middle of the day (nisf al-nahar) is the disliked time?

Answer

No amount of time before or after the middle of the day is makruh. However, exact knowledge of the very moment of midday is itself not so easy. Therefore, as great as the possibility of error in estimating midday is, for that much time before and after it one should take precaution and refrain from praying: if somewhere there is a possibility [of error] of ten minutes, then…

Source: Fatawa Mahmudiyya

Preview. The full text opens with JavaScript enabled.