When to call abroad without being rude
The best time windows to reach a friend or a client internationally.
Some hours are universally frowned upon for an unplanned call, others are safe.
Avoid: before 8am and after 9pm the recipient's local time, and lunch hours (12–2pm) in most cultures.
Safe window: 10am–12pm and 3–6pm on weekdays are the most reliable slots for an unplanned professional or personal call.
Tip: before calling, check the exact time with our time zone converter instead of calculating the offset in your head — daylight saving changes vary by country and easily throw the math off.
Handy tools
Find the time slots that work across several time zones at once.
Convert a time from one city to several others at a glance.
The exact dates for the switch to and from daylight saving time in Europe, the United States, Canada and Australia, calculated automatically every year.