Don't schedule business around Friday or prayer times
The weekend is Friday–Saturday, not Saturday–Sunday, and Friday midday is reserved for communal prayer, avoid scheduling meetings then, and expect offices, shops, and meetings to pause briefly around each of the five daily prayer times.
Plan around a Friday–Saturday weekend, with Sunday as a normal working day. Avoid booking anything during Friday midday prayer specifically; it’s the one most businesses actively close for, often for the better part of an hour.
Across the rest of the week, build slack into your schedule around the five daily prayer times, since shops, restaurants, and even meetings may pause briefly when the call to prayer sounds. Saudi counterparts often run on a more relaxed sense of punctuality themselves, so arriving 10-15 minutes early as a visitor is a safe habit even if your host doesn’t.
During Ramadan, expect the rhythm to shift further: by law, Muslim employees’ working hours drop to six hours a day, and eating or drinking in public (including in an office) during daylight fasting hours is off-limits, plan meetings accordingly rather than assuming a normal workday.
Why it matters
Friday (Jumu'ah) is the main congregational prayer day in Islam, and on Fridays the midday prayer is replaced by an extended Jumu'ah service that can run 45-60 minutes, longer than a normal daily prayer break. Prayer always takes priority over a meeting in progress, so back-to-back scheduling is genuinely risky, not just tight, plan buffer around each of the five daily prayer times rather than booking through them.