Compare a date and time across multiple cities at once.
The date and time you enter are read in your device's own time zone, and "Use current time" resets them to right now. Add as many cities as you like with "Add another city," and each row shows that city's local time and date. Change the reference time and every row updates.
The tool converts one moment in time into each city's local time using your browser's built-in time zone database. It automatically accounts for each region's current daylight saving offset, so you don't need to know whether a place is on standard or summer time. Cities are available across North America, Europe, Asia, Australia and New Zealand, and South America, plus UTC.
Not every region uses daylight saving time, and those that do don't switch on the same dates. The US and Canada move clocks between the second Sunday in March and the first Sunday in November, while most of Europe changes on the last Sundays of March and October. For a few weeks each spring and autumn, the gap between New York and London is 4 hours instead of the usual 5. Tokyo, Mumbai, Delhi, Singapore, Hong Kong and Dubai don't change at all. Sydney and Auckland are in the southern hemisphere, so their summer time runs roughly October to April.
Some places also use half-hour offsets. India is UTC+5:30, which is why a meeting at 9:00 AM in New York in winter lands at half past the hour in Mumbai.
Because the calendar date changes at midnight local time. A late evening in New York can already be tomorrow in Tokyo or Sydney, and the date shown under each time reflects that.
The input is always in your device's zone. To start from another city's time, work backward: adjust the reference time until that city's row shows the time you have in mind, then read off the other rows.
Convert the event time to your local time here, then enter that in the countdown timer. To count days between calendar dates, use the date calculator.