Last Third of the Night Calculator

How is the last third calculated?

We measure the elapsed time from Maghrib to the following Fajr. The midpoint is halfway through that interval; the last third starts two-thirds of the way through. Islamic midnight is not necessarily 00:00. The night ends at Fajr, not sunrise.

For example, Maghrib at 18:00 and Fajr at 06:00 make a 12-hour night when the clocks do not change. Its midpoint is 00:00 and its last third begins at 02:00. On clock-change nights, this calculator uses elapsed time in the selected timezone.

Is Tahajjud only in the last third?

Night prayer is offered after Isha and before Fajr; it is not restricted to the last third. Tahajjud commonly refers to prayer after sleeping. Sahih al-Bukhari 1145 describes the virtue of supplication in the last third. The midpoint here is a calculation, not a universal ruling on the end of Isha time; scholarly details differ.

Sources and calculation limits

City times come from Aladhan using your selected calculation method. Prayer start times are not congregation times. Fajr methods can differ, particularly at high latitudes. Follow your local mosque’s guidance or enter a trusted local timetable. If Maghrib or Fajr is unavailable, we do not invent a replacement.

• Jordan Iftaa Department: calculating the last third
• Sahih al-Bukhari 1145
• Explanation of the night-prayer period
• Aladhan prayer-times service