Convert time between major world cities and time zones instantly.
Convert time between major world cities
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Always double-check important financial decisions with a qualified professional. This calculator provides estimates for guidance purposes. Results may vary based on your specific circumstances.
Time zones aren't simply hourly offsets from UTC in clean, predictable patterns — half-hour offsets (India, parts of Australia) and even 45-minute offsets (parts of Nepal) exist, breaking the assumption that all time zones differ by whole hours.
Daylight saving time adds another layer of complexity — not all countries observe it, and those that do don't all switch on the same dates, meaning the time difference between two cities can actually change twice a year depending on each location's specific daylight saving schedule.
Scheduling international meetings requires accounting for this — a meeting that works perfectly at 9am EST and 2pm GMT in winter might need adjustment if the UK observes daylight saving changes on a different date than the US, temporarily shifting the gap by an hour.
Use the calculator above for quick time zone conversions across major world cities — useful for scheduling calls, understanding flight arrival times, or simply figuring out if it's a reasonable hour to call someone on the other side of the world.