What is the ruling on making and displaying a prayer timetable that shows the approximate time of Islamic midnight and the last 3rd of the night? The intention is only for it to be used as a personal guideline for people who want to know these times, not as an official timetable for jamāʿah prayers

Ustadh AbdulAziz al-Haqqan

I know of no reason that prevents from this and Allah knows best.