The recommended time for Suhoor.
By dividing the entire night, that is, the intermediate time from sunset to true dawn, into six equal parts, it is recommended (Mustahab) to eat Suhoor in the last part; for example, if the night is 12 hours long, it will be recommended to eat Suhoor in the last two hours. (Kitab-un-Nawazil/Vol:6/Page:339)