World Times and Time Tools
Online Clocks, Time Apps for Business and Leisure
Time guides in all major cities, states and countries
Greenwich Mean Time
Greenwich Mean Time (GMT) is time at the Shepherd Gate Clock, at the Royal Observatory in Greenwich, UK. GMT stays the same all year round, no Daylight Saving Time (DST) rules apply.
London time is now BST (British Summer Time) or GMT+1. What is GMT?
Tools to help with time zone differences
If you already know the time zone GMT offsets, a much loved older tool is still available on the new GMT converter page.
Till the September Equinox, check Sunrise and Sunset Times to see how days lose minutes!
Sun Time now indicates the solstice. Moon Time animates to current lunar phase.
If you know the area code of the person you want to ring, use this tool to make sure it's not too early or to late to make that call.
What is BST? More than an acronym for British Summer Time.
Current Time in the United States
How many time zones does the USA span? Go from EAST TO WEST.
For quick reference, the mini-clocks below tell you the time in some of them.
Our World Clock and Timepiece Apps give you instant answers to time queries.
GMT offsets and Time Zones come together for you in the CONVERSION TO pages.
More timepiece apps:
Time Calculation
Imagine travelling to a different country, in a different part of the world, and waking up much earlier or later, due to the time zone difference.
On holiday it would be useful to know what time the sun rises and sets, even before our biological clock finally adjusts. Bookmark the Sunrise gadget below and use it in conjunction with the Moon one.
If only your ideas travel, as it happens in today's international business, the Meeting Planner will come in handy.
Read our Time-related Articles
Find out more about Lunar Calendars, Shakespeare and Time and Definitions of Time.
