Groton, CT to Vancouver: time difference
Vancouver is 3 h behind Groton, CT. 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.
Groton, CT 16:39 4:39 PM Vancouver 13:39 1:39 PM You –:–
16:39 4:39 PM
Eastern Daylight Time · UTC-4
☀️ 07:06 · 🌙 18:01
13:39 1:39 PM
Pacific Daylight Time · UTC-7
☀️ 07:42 · 🌙 18:14
·
−3 h
Vancouver is 3 h behind Groton, CT.
When you, Groton, CT and Vancouver are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇺🇸 Groton, CT
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
🇨🇦 Vancouver
21 9 PM 22 10 PM 23 11 PM 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
📍 Your time
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Time zones side by side
| Detail | 🇺🇸 Groton, CT | 🇨🇦 Vancouver |
|---|---|---|
| Local time | 16:39 | 13:39 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Eastern Daylight Time | Pacific Daylight Time |
| UTC offset | UTC-4 | UTC-7 |
| Offset from Groton, CT | — | −3 h |
| IANA zone | America/New York | America/Vancouver |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | On summer time → UTC-8, Nov 1, 01:00 |
| Sunrise | 07:06 | 07:42 |
| Sunset | 18:01 | 18:14 |
| Daylight | 10 h 55 min | 10 h 32 min |
| People on this clock | 40,115 | 631,486 |
Compare Groton, CT with another city
More comparisons with Groton, CT: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Groton, CT and Vancouver: common questions
How many hours behind Groton, CT, is Vancouver?
The clocks in Vancouver are 3 hours behind those in Groton (UTC−7 and UTC−4).
What time is it in Vancouver when it is 9:00 AM in Groton, CT?
When it is 9:00 AM in Groton, it is 6:00 AM in Vancouver.
What time is it in Vancouver at the end of the working day in Groton, CT?
The working day in Groton ends at 6:00 PM; in Vancouver it is 3:00 PM at that moment.
When do working hours in Groton, CT, and in Vancouver overlap?
Working hours (9:00 AM–6:00 PM) overlap from 12:00 PM to 6:00 PM in Groton, which is 9:00 AM to 3:00 PM in Vancouver.
When does the date change in Vancouver compared with Groton, CT?
The new day starts in Vancouver later: until 3:00 AM in Groton, it is still the previous day there. From 9:00 PM in Vancouver, Groton is already on the next day.
Is the time difference between Groton, CT, and Vancouver the same all year?
No. Only Groton switches to summer time, so the gap changes twice a year. From November 1, 2026, Vancouver will be 2 hours behind Groton.
