Offset
There is no time difference between Uruguay Time and Atlantic Time.
Uruguay Time (UYT) is currently the same time as Atlantic Time (ADT).
UYT: UTC-3
ADT: UTC-3
Atlantic Time is currently observing daylight saving time; Uruguay Time is not.
When to schedule
Business-hours overlap: 9 AM–5 PM in Uruguay Time (9 AM–5 PM in Atlantic Time).
Both teams are in working hours during this window on weekdays.
Suggested time: 1:00 PM Uruguay Time (1:00 PM Atlantic Time).
This window may shift by an hour during daylight saving time.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
Uruguay
- New Year's DayThu, Jan 1
- Children's DayTue, Jan 6
- CarnivalMon, Feb 16
- CarnivalTue, Feb 17
- Maundy ThursdayThu, Apr 2
- Good FridayFri, Apr 3
- Landing of the 33 Patriots DaySun, Apr 19
- International Workers' DayFri, May 1
- Battle of Las PiedrasMon, May 18
- Birthday of José Gervasio Artigas and Never Again DayFri, Jun 19
- Constitution DaySat, Jul 18
- Independence DayTue, Aug 25
- Day of the raceMon, Oct 12
- Deceased ones dayMon, Nov 2
- Christmas DayFri, Dec 25
Canada
- New Year's DayThu, Jan 1
- Good FridayFri, Apr 3
- Victoria DayMon, May 18
- Canada DayWed, Jul 1
- Labour DayMon, Sep 7
- National Day for Truth and ReconciliationWed, Sep 30
- ThanksgivingMon, Oct 12
- Christmas DayFri, Dec 25
About these zones
Uruguay Time is also known as UYT. To call Uruguay, dial +598.
Atlantic Time is also known as AST, or ADT. To call Canada, dial +1.
Atlantic Time is approximately 5,500 miles north of Uruguay Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| UYT | AST-ATLANTIC | Day |
|---|---|---|
| 12:00 am | 12:00 am | Same day |
| 1:00 am | 1:00 am | Same day |
| 2:00 am | 2:00 am | Same day |
| 3:00 am | 3:00 am | Same day |
| 4:00 am | 4:00 am | Same day |
| 5:00 am | 5:00 am | Same day |
| 6:00 am | 6:00 am | Same day |
| 7:00 am | 7:00 am | Same day |
| 8:00 am | 8:00 am | Same day |
| 9:00 am | 9:00 am | Same day |
| 10:00 am | 10:00 am | Same day |
| 11:00 am | 11:00 am | Same day |
| 12:00 pm | 12:00 pm | Same day |
| 1:00 pm | 1:00 pm | Same day |
| 2:00 pm | 2:00 pm | Same day |
| 3:00 pm | 3:00 pm | Same day |
| 4:00 pm | 4:00 pm | Same day |
| 5:00 pm | 5:00 pm | Same day |
| 6:00 pm | 6:00 pm | Same day |
| 7:00 pm | 7:00 pm | Same day |
| 8:00 pm | 8:00 pm | Same day |
| 9:00 pm | 9:00 pm | Same day |
| 10:00 pm | 10:00 pm | Same day |
| 11:00 pm | 11:00 pm | Same day |
Daylight saving time
Atlantic Time observes daylight saving time; Uruguay Time does not. The offset between the two zones changes when Atlantic Time transitions: on Sunday, November 1, 2026, clocks fall back from ADT to AST.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 7:47 AM
- Sunset
- 5:41 PM
- Day length
- 9h 54m
- Sunrise
- 5:31 AM
- Sunset
- 8:56 PM
- Day length
- 15h 25m
Daylight overlap: 9h 54m — 7:47 AM–5:41 PM in Uruguay Time (7:47 AM–5:41 PM in Atlantic Time). Both locations are in daylight during this window.
Cities in these zones
Cities in Uruguay Time
Cities in Atlantic Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Uruguay Time
- MVD
Airports in Atlantic Time
- YHZ
Related conversions
Common conversions
- What is 9:00 am UYT in AST-ATLANTIC?
- 9:00 am UYT is 9:00 am AST-ATLANTIC.
- What is 12:00 pm UYT in AST-ATLANTIC?
- 12:00 pm UYT is 12:00 pm AST-ATLANTIC.
- What is 12:30 pm UYT in AST-ATLANTIC?
- 12:30 pm UYT is 12:30 pm AST-ATLANTIC.
- What is 2:00 pm UYT in AST-ATLANTIC?
- 2:00 pm UYT is 2:00 pm AST-ATLANTIC.
- What is 5:00 pm UYT in AST-ATLANTIC?
- 5:00 pm UYT is 5:00 pm AST-ATLANTIC.
- What is 11:30 pm UYT in AST-ATLANTIC?
- 11:30 pm UYT is 11:30 pm AST-ATLANTIC.