ToolKnack

Time Zone Converter

Convert a time between cities and time zones. Daylight saving time is handled automatically.

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How to use the Time Zone Converter

  1. 1Choose the date, time and starting time zone.
  2. 2Add the cities you want to compare.
  3. 3Read the converted times; click a city to make it the starting zone.

Daylight saving time

Many countries move clocks forward in spring and back in autumn, on different dates. This converter uses your browser's built-in time zone database, so differences are correct for the date you choose.

Major time zones

Offsets from UTC in standard time and during daylight saving time (summer):

CityStandardSummer
Los AngelesUTC−8UTC−7
New YorkUTC−5UTC−4
LondonUTC+0UTC+1
Berlin, ParisUTC+1UTC+2
DubaiUTC+4No DST
KarachiUTC+5No DST
New DelhiUTC+5:30No DST
SingaporeUTC+8No DST
TokyoUTC+9No DST
SydneyUTC+10UTC+11 (Oct–Apr)

When clocks change

The US and Canada move clocks forward on the second Sunday in March and back on the first Sunday in November. The UK and EU change on the last Sunday in 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, a common cause of missed meetings.

Frequently asked questions

Why does the time difference change during the year?

Because countries switch to daylight saving time on different dates (and many never do). Pick the exact date to get the right difference.

What is the best time for a meeting between the US and Europe?

Late morning on the US East Coast works best: 10:00–11:00 in New York is 15:00–16:00 in London and 16:00–17:00 in Berlin. West Coast calls are only practical early in the morning.