gmt

Everyday

1. GMT stands for Greenwich Mean Time: the time at the Prime Meridian in Greenwich, London, used as the starting point for the world's time zones. tree →
2. The time used in the UK in winter (in summer the UK uses British Summer Time, one hour ahead of GMT). tree →

In the lessons

In geography and time lessons GMT is the zero point for time zones: places to the east are ahead, places to the west are behind. Phrases: «GMT+1», «GMT-5», «at 9 pm GMT».

Examples

• GMT stands for Greenwich Mean Time. tree →
• New York is five hours behind GMT in winter. tree →
• The match starts at 3 pm GMT. tree →
• In summer the UK clocks go forward to BST, one hour ahead of GMT. tree →
• Paris is at GMT+1 in winter. tree →
• At the Royal Observatory in Greenwich you can stand on the line where GMT is measured. tree →
• If it is noon GMT, it is 7 am in New York (in winter). tree →

Note

An abbreviation, written in capitals: GMT. Not an English word on its own. Scientists today mostly use UTC (Coordinated Universal Time), which is almost the same. In maths problems: «GMT+3» means add 3 hours to GMT; «GMT−5» means take away 5 hours.