Calgary to Green Island: time difference
Green Island is 1 h ahead of Calgary. Live clocks for both, the working hours they share, and how each one sits against your own time.
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Calgary 02:01 2:01 AM Green Island 03:01 3:01 AM You –:–
02:01 2:01 AM
Mountain Daylight Time · UTC-6
☀️ 08:38 · 🌙 18:03
03:01 3:01 AM
Eastern Standard Time · UTC-5
☀️ 06:16 · 🌙 17:39
·
+1 h
Green Island is 1 h ahead of Calgary.
When you, Calgary and Green Island are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇨🇦 Calgary
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇯🇲 Green Island
1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM 0 12 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇨🇦 Calgary | 🇯🇲 Green Island |
|---|---|---|
| Local time | 02:01 | 03:01 |
| Local date | Friday, November 6, 2026 | Friday, November 6, 2026 |
| Time zone | Mountain Daylight Time | Eastern Standard Time |
| UTC offset | UTC-6 | UTC-5 |
| Offset from Calgary | — | +1 h |
| IANA zone | America/Edmonton | America/Jamaica |
| Daylight saving | On summer time | Not observed |
| Sunrise | 08:38 | 06:16 |
| Sunset | 18:03 | 17:39 |
| Daylight | 9 h 25 min | 11 h 24 min |
| People on this clock | 1,267,344 | 2,546 |
Compare Calgary with another city
More comparisons with Calgary: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Calgary and Green Island: common questions
How many hours ahead of Calgary is Green Island?
The clocks in Green Island are 1 hour ahead of those in Calgary (UTC−5 and UTC−6).
If it is 9:00 AM in Calgary, what time is it in Green Island?
At 9:00 AM in Calgary, clocks in Green Island show 10:00 AM.
What time is it in Green Island at the end of the working day in Calgary?
The working day in Calgary ends at 6:00 PM; in Green Island it is 7:00 PM at that moment.
When is a good time to call Green Island from Calgary?
Between 9:00 AM and 5:00 PM in Calgary – that is 10:00 AM to 6:00 PM in Green Island – both places are within working hours (9:00 AM–6:00 PM).
When is it already the next day in Green Island?
From 11:00 PM in Calgary it is already the next day in Green Island. The other way round, until 1:00 AM in Green Island it is still the previous day in Calgary.
Is the time difference between Calgary and Green Island the same all year?
Yes. Neither Calgary nor Green Island switches to summer time, so the gap is always 1 hour.
