Convert Greenwich Mean Time (GMT) to Eastern Time (EST/EDT), with daylight saving applied for the exact date you pick.
Tue, Oct 27
Tue, Oct 27 Same day
| Su | Mo | Tu | We | Th | Fr | Sa |
|---|
GMT 9 to 5 EDT 9 to 5
EDT is 4 hours behind GMT.
The same conversion works for every city on these clocks, such as Greenwich to New York and Greenwich to Toronto.
Shaded areas follow the official zone boundaries, so a country split across zones is split here too. Hover or tap a region for its local time.
Every hour of Tuesday, October 27, 2026, side by side. Days with a clock change show 23 or 25 rows.
Shaded rows fall inside working hours in both places.
| Greenwich (GMT) | New York (EDT) | Working hours |
|---|---|---|
| 12:00 AM | 8:00 PM previous day | |
| 1:00 AM | 9:00 PM previous day | |
| 2:00 AM | 10:00 PM previous day | |
| 3:00 AM | 11:00 PM previous day | |
| 4:00 AM | 12:00 AM | |
| 5:00 AM | 1:00 AM | |
| 6:00 AM | 2:00 AM | |
| 7:00 AM | 3:00 AM | |
| 8:00 AM | 4:00 AM | |
| 9:00 AM | 5:00 AM | |
| 10:00 AM | 6:00 AM | |
| 11:00 AM | 7:00 AM | |
| 12:00 PM | 8:00 AM | |
| 1:00 PM | 9:00 AM | Both working |
| 2:00 PM | 10:00 AM | Both working |
| 3:00 PM | 11:00 AM | Both working |
| 4:00 PM | 12:00 PM | Both working |
| 5:00 PM | 1:00 PM | |
| 6:00 PM | 2:00 PM | |
| 7:00 PM | 3:00 PM | |
| 8:00 PM | 4:00 PM | |
| 9:00 PM | 5:00 PM | |
| 10:00 PM | 6:00 PM | |
| 11:00 PM | 7:00 PM |
Every hour of the Greenwich Mean Time day, plus the common half hours, and their EST equivalents. The second column covers the part of the year when the clocks are on a different gap.
| Greenwich Mean Time | EDT 4 h behind, most of the year (238 days in 2026) | EST 5 h behind, about 18 weeks in 2026 |
|---|---|---|
| 12:00 AM | 8:00 PM (previous day) | 7:00 PM (previous day) |
| 1:00 AM | 9:00 PM (previous day) | 8:00 PM (previous day) |
| 2:00 AM | 10:00 PM (previous day) | 9:00 PM (previous day) |
| 3:00 AM | 11:00 PM (previous day) | 10:00 PM (previous day) |
| 4:00 AM | 12:00 AM | 11:00 PM (previous day) |
| 5:00 AM | 1:00 AM | 12:00 AM |
| 6:00 AM | 2:00 AM | 1:00 AM |
| 7:00 AM | 3:00 AM | 2:00 AM |
| 8:00 AM | 4:00 AM | 3:00 AM |
| 9:00 AM | 5:00 AM | 4:00 AM |
| 9:30 AM | 5:30 AM | 4:30 AM |
| 10:00 AM | 6:00 AM | 5:00 AM |
| 10:30 AM | 6:30 AM | 5:30 AM |
| 11:00 AM | 7:00 AM | 6:00 AM |
| 11:30 AM | 7:30 AM | 6:30 AM |
| 12:00 PM | 8:00 AM | 7:00 AM |
| 12:30 PM | 8:30 AM | 7:30 AM |
| 1:00 PM | 9:00 AM | 8:00 AM |
| 1:30 PM | 9:30 AM | 8:30 AM |
| 2:00 PM | 10:00 AM | 9:00 AM |
| 2:30 PM | 10:30 AM | 9:30 AM |
| 3:00 PM | 11:00 AM | 10:00 AM |
| 3:30 PM | 11:30 AM | 10:30 AM |
| 4:00 PM | 12:00 PM | 11:00 AM |
| 4:30 PM | 12:30 PM | 11:30 AM |
| 5:00 PM | 1:00 PM | 12:00 PM |
| 5:30 PM | 1:30 PM | 12:30 PM |
| 6:00 PM | 2:00 PM | 1:00 PM |
| 7:00 PM | 3:00 PM | 2:00 PM |
| 8:00 PM | 4:00 PM | 3:00 PM |
| 9:00 PM | 5:00 PM | 4:00 PM |
| 10:00 PM | 6:00 PM | 5:00 PM |
| 11:00 PM | 7:00 PM | 6:00 PM |
Each row is a stretch of days with one constant difference, split at every clock change.
| Dates | GMT | EST | Difference |
|---|---|---|---|
| Thu, Jan 1, 2026 until Sun, Mar 8, 2026 | GMT | EST | EST 5 h behind |
| Sun, Mar 8, 2026 until Sun, Nov 1, 2026 | GMT | EDT | EDT 4 h behind |
| Sun, Nov 1, 2026 until Sun, Mar 14, 2027 | GMT | EST | EST 5 h behind |
| Sun, Mar 14, 2027 until Sun, Nov 7, 2027 | GMT | EDT | EDT 4 h behind |
| Sun, Nov 7, 2027 until Sat, Jan 1, 2028 | GMT | EST | EST 5 h behind |
Greenwich Mean Time is UTC+0 and, for everyday purposes, the same clock as UTC. It does not shift for daylight saving time.
The UK uses GMT only in winter and British Summer Time (BST, UTC+1) in summer. For London time, use the UK time pages.
Eastern Time follows the clock in New York. It is Eastern Standard Time (EST, UTC−5) in winter and Eastern Daylight Time (EDT, UTC−4) from the second Sunday in March to the first Sunday in November.
People often write EST all year round. Strictly, EST is only the winter offset; in summer the eastern US is on EDT. The converter follows the real New York clock for the date you pick.
EDT is 4 hours behind GMT for most of the year (238 days in 2026). The gap is 5 hours for about 18 weeks in 2026.
New York uses Eastern Time. EDT is 4 hours behind GMT for most of the year (238 days in 2026). The gap is 5 hours for about 18 weeks in 2026. Type any GMT time into the GMT to EST converter to see the New York time for any date.
9:00 AM GMT is 5:00 AM EDT for most of the year (238 days in 2026). 9:00 AM GMT is 4:00 AM EST for about 18 weeks in 2026.
12:00 PM GMT is 8:00 AM EDT for most of the year (238 days in 2026). 12:00 PM GMT is 7:00 AM EST for about 18 weeks in 2026.
10:00 AM GMT is 6:00 AM EDT for most of the year (238 days in 2026). 10:00 AM GMT is 5:00 AM EST for about 18 weeks in 2026.
5:00 PM GMT is 1:00 PM EDT for most of the year (238 days in 2026). 5:00 PM GMT is 12:00 PM EST for about 18 weeks in 2026.
No, EST is behind GMT. EDT is 4 hours behind GMT for most of the year (238 days in 2026). The gap is 5 hours for about 18 weeks in 2026.
Working days of 9 AM to 5 PM overlap from 1:00 PM to 5:00 PM GMT, which is 9:00 AM to 1:00 PM EDT while GMT and EDT apply.
Eastern Time changes its clocks twice a year; Greenwich Mean Time does not. The next change is on Sunday, November 1, 2026 in Eastern Time.
The UK uses GMT only in winter and British Summer Time (BST, UTC+1) in summer. For London time, use the UK time pages.
People often write EST all year round. Strictly, EST is only the winter offset; in summer the eastern US is on EDT. The converter follows the real New York clock for the date you pick.