Instant time conversion between world locations
View local current time differences and GMT offsets
GMT is both a time zone and the reference point for the Prime Meridian
Looking for current time in a particular country? Use the World Clock and then compare time differences or offsets with the Time Zone Converter
The United Kingdom uses GMT only during winter months and British Summer Time (BST) during summer months.
British Summer Time is in its way unique, not just because of its name. As it happens quite often, scientific facts provide surprising insights.