The Greece time difference is +2 hours from London and +7 hours from New York all year round (briefly different for a few weeks in spring and autumn, when the UK and the US change their clocks on different dates).
In practice, when it is noon in London, it is 14:00 in Athens all year. When it is noon in New York, it is 19:00 in Athens all year.
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Live local time
Calculated by your browser from the IANA time zone database.
Time in Greece: key facts
- Time zone: UTC+2 (standard time) / UTC+3 (daylight saving time), IANA identifier
Europe/Athens - Difference with London: +2 h all year
- Difference with New York: +7 h in both Eastern Standard Time and Eastern Daylight Time
- Daylight saving in Greece: yes, see the dates below
- Next clock changes: UK on Sunday 25 October 2026 (BST to GMT) and Sunday 28 March 2027; US on Sunday 1 November 2026 (EDT to EST) and Sunday 14 March 2027
Time difference between London, New York and Greece
| Time in London | In Athens (UK winter, GMT) | In Athens (UK summer, BST) |
|---|---|---|
| 08:00 | 10:00 | 10:00 |
| 12:00 | 14:00 | 14:00 |
| 18:00 | 20:00 | 20:00 |
| 22:00 | 00:00 (next day) | 00:00 (next day) |
| Time in New York | In Athens (US winter, EST) | In Athens (US summer, EDT) |
|---|---|---|
| 08:00 (8 am) | 15:00 | 15:00 |
| 12:00 (noon) | 19:00 | 19:00 |
| 18:00 (6 pm) | 01:00 (next day) | 01:00 (next day) |
| 22:00 (10 pm) | 05:00 (next day) | 05:00 (next day) |
The gap stays the same for most of the year because Greece and the UK change their clocks on the same dates; it differs only for a few weeks in spring and autumn, when the US changes its clocks on a different date.
Clock changes 2026–2027
Greece observes daylight saving time. Planned dates (local time in Athens):
- Sunday 25 October 2026: from UTC+3 to UTC+2
- Sunday 28 March 2027: from UTC+2 to UTC+3
- Sunday 31 October 2027: from UTC+3 to UTC+2
Clocks also change in the UK and the US on the following dates:
- UK, Sunday 25 October 2026: BST (UTC+1) to GMT (UTC+0)
- US, Sunday 1 November 2026: EDT (UTC−4) to EST (UTC−5) in New York
- US, Sunday 14 March 2027: EST (UTC−5) to EDT (UTC−4)
- UK, Sunday 28 March 2027: GMT (UTC+0) to BST (UTC+1)
- UK, Sunday 31 October 2027: BST (UTC+1) to GMT (UTC+0)
- US, Sunday 7 November 2027: EDT (UTC−4) to EST (UTC−5)
When to call Greece from the UK or the US
To reach someone between 09:00 and 20:00 Athens time, call between 07:00 and 18:00 London time all year. From New York, call between 02:00 and 13:00 all year.
On 15 January 2027, office hours (09:00–17:00) overlap for 6 hours with London and for 1 hour with New York. Always state the time zone in your meeting invitations.
Time difference and jet lag: practical tips
With a gap of at most 2 hours from London, the trip does not disrupt your rhythm much; the main trap is forgetting to set your watch or calendar to local time for a booked train, tour or meeting. From North America the gap is larger (+7 hours from New York), so a few simple rules help you adjust to local time:
- Set your watch and phone to local time as soon as you board.
- Align meals and bedtime with local time from the first day.
- Plan a light first day, with no important meetings or long drives.
- Get out in daylight when you arrive and avoid long naps.
- If you take medication at fixed times, ask your doctor how to adapt the schedule to the time difference.
Greece time zone: IANA identifier and history
| Zone | IANA identifier | Standard time on 15 January 2027 | On 15 July 2027 | Abbreviation |
|---|---|---|---|---|
| Athens | Europe/Athens | UTC+2 | UTC+3 | EET |
- Athens (
Europe/Athens): daylight saving time applied every year; the tz database records it since at least 1975.
Daylight saving time in Greece in 2027: clock-change dates
Dates calculated from the tz database rules for Europe/Athens (Athens). They coincide with those in the UK: the gap with London therefore stays the same all year.
- Sunday 28 March 2027 at 03:00 (local time): clocks go forward one hour (UTC+2 → UTC+3), at the same moment as the UK clock change.
- Sunday 31 October 2027 at 04:00 (local time): clocks go back one hour (UTC+3 → UTC+2), at the same moment as the UK clock change.
| 2027 period | Athens vs London | Athens vs New York |
|---|---|---|
| 1 January – 13 March | +2 h | +7 h |
| 14 – 27 March | +2 h | +6 h |
| 28 March – 30 October | +2 h | +7 h |
| 31 October – 6 November | +2 h | +6 h |
| 7 November – 31 December | +2 h | +7 h |
Sunrise and sunset in Athens in 2027
Local sunrise and sunset times on the 15th of each month in Athens (37.99° N, 23.73° E), daylight saving time included. They help you time your exposure to daylight, the main lever for resetting your body clock on arrival.
| 15th of the month | Sunrise | Solar noon | Sunset | Day length | Sunrise / sunset in London time |
|---|---|---|---|---|---|
| January | 07:40 | 12:34 | 17:29 | 9 h 49 | 05:40 / 15:29 |
| February | 07:15 | 12:39 | 18:03 | 10 h 48 | 05:15 / 16:03 |
| March | 06:37 | 12:34 | 18:32 | 11 h 55 | 04:37 / 16:32 |
| April | 06:50 | 13:25 | 20:00 | 13 h 10 | 04:50 / 18:00 |
| May | 06:15 | 13:21 | 20:28 | 14 h 13 | 04:15 / 18:28 |
| June | 06:02 | 13:26 | 20:49 | 14 h 47 | 04:02 / 18:49 |
| July | 06:14 | 13:31 | 20:48 | 14 h 33 | 04:14 / 18:48 |
| August | 06:40 | 13:30 | 20:19 | 13 h 39 | 04:40 / 18:19 |
| September | 07:07 | 13:20 | 19:34 | 12 h 28 | 05:07 / 17:34 |
| October | 07:33 | 13:11 | 18:48 | 11 h 15 | 05:33 / 16:48 |
| November | 07:05 | 12:10 | 17:14 | 10 h 08 | 05:05 / 15:14 |
| December | 07:34 | 12:20 | 17:06 | 9 h 33 | 05:34 / 15:06 |
The longest day in the table is 15 June (14 h 47 between 06:02 and 20:49), the shortest 15 December (9 h 33).
In the other destinations covered by our guides, daylight varies with latitude and position within the time zone:
| Destination | Time zone | Daylight on 15 January 2027 | Daylight on 15 July 2027 |
|---|---|---|---|
| Corfu | Europe/Athens | 07:59 – 17:40 | 06:25 – 21:07 |
| Fira | Europe/Athens | 07:29 – 17:26 | 06:12 – 20:37 |
| Heraklion | Europe/Athens | 07:28 – 17:30 | 06:16 – 20:35 |
Jet lag: how flight direction affects you in Greece
- Outbound from the UK (flying east): you « lose » 2 hours all year; your arrival day is shortened and you need to go to bed earlier than your body clock expects.
- Return to the UK (flying west): the opposite applies. Flying west is generally considered easier to cope with: you just need to stay up a little later.
- From New York (flying east): you « lose » 7 hours all year; your arrival day is shortened and you need to go to bed earlier than your body clock expects.
- Your usual night at home (23:00 – 07:00) corresponds to 01:00 – 09:00 in Athens from London in UK winter (same during BST), and to 06:00 – 14:00 in Athens from New York during EST (same during EDT): this is when your body will want to sleep for the first few days.
- Daylight on arrival: in Athens, the sun rises around 07:40 and sets around 17:29 in mid-January, and around 06:14 and 20:48 in mid-July (table above). After flying east, seek morning light and avoid it late in the day; this is the standard advice for shifting your body clock.
Plan your trip to Greece
- Our complete Greece travel guide: highlights, itineraries and budget
- Best time to visit Greece: month-by-month weather and the best season
- Time differences around the world: every country in our guides
Frequently asked questions
What is the time difference between Greece and the UK or the US?
Greece is 2 hours ahead of London all year. It is 7 hours ahead of New York all year.
What time is it in Greece when it is noon in London or New York?
In Athens, noon in London is 14:00 all year; noon in New York is 19:00 all year.
Does Greece have daylight saving time?
Yes. Next changes (local time): Sunday 25 October 2026: from UTC+3 to UTC+2; Sunday 28 March 2027: from UTC+2 to UTC+3.
When should I call Greece from the UK or the US?
To reach someone between 09:00 and 20:00 local time, call between 07:00 and 18:00 London time all year, or between 02:00 and 13:00 New York time all year.
What is the IANA time zone for Greece?
Athens: Europe/Athens.
What time does the sun rise in Athens?
Around 07:40 on 15 January 2027 and around 06:14 on 15 July 2027 (local time); sunset around 17:29 and 20:48. Destination de Voyage calculation (NOAA algorithm).
Our sources
- Sunrise and sunset: algorithm from the NOAA Solar Calculator (Global Monitoring Laboratory), applied to the capital’s coordinates (Natural Earth, Wikidata or Wikipedia): Destination de Voyage calculation.
- IANA Time Zone Database (tz database), version 2026b, consulted on 13 October 2026: time zones, rules and clock-change dates. Future dates may be changed by local authorities.
- UK clock changes: GOV.UK, When do the clocks change? (UK summer time from the last Sunday in March to the last Sunday in October).
- US daylight saving time: NIST, Daylight Saving Time (from the second Sunday in March to the first Sunday in November).
- Live time: calculated by your browser (Intl API), which relies on the same IANA database.
- Our methodology
Updated November 2026.
