When is the time for the morning and evening adhkar? Is it permissible to recite them upon waking up for work, or should it be immediately after Fajr prayer? Are they restricted to the time of sunrise and sunset?

The time for morning remembrances (adhkar) begins at true dawn and ends at sunrise or midday (zawwal). It is permissible to recite them immediately after Fajr prayer, which is preferable, or before sunrise, or upon waking up for work. As for evening remembrances, their time begins after Asr prayer and ends at sunset. Some say it extends until midnight.