Time in Calama vs Buenos Aires
Calama keeps UTC−3 (UTC−3) and Buenos Aires keeps UTC−3 (UTC−3) today. Buenos Aires is the same time as Calama; the rows below read both clocks live.
The working day, side by side
Hours shaded in both rows are inside working hours in both cities: 09:00–18:00 in Buenos Aires (09:00–18:00 your time).
| City | 00:00 in Calama | 01:00 in Calama | 02:00 in Calama | 03:00 in Calama | 04:00 in Calama | 05:00 in Calama | 06:00 in Calama | 07:00 in Calama | 08:00 in Calama | 09:00 in Calama | 10:00 in Calama | 11:00 in Calama | 12:00 in Calama | 13:00 in Calama | 14:00 in Calama | 15:00 in Calama | 16:00 in Calama | 17:00 in Calama | 18:00 in Calama | 19:00 in Calama | 20:00 in Calama | 21:00 in Calama | 22:00 in Calama | 23:00 in Calama |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Calama—— | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| Buenos Aires—— | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
- Working hours
- Shoulder
- Night
- Overlap
Do more with Calama and Buenos Aires
Best hours to call
Where daylight saving pulls them apart
Calama next changes on Saturday 3 April 2027. Between those two dates the gap between the cities is an hour different from the one shown above — which is exactly when a recurring meeting drifts. Every date we track is on the daylight saving page.
Also useful
Common questions
How many hours ahead is Buenos Aires of Calama?
Buenos Aires and Calama read the same clock right now.
What is the best time to call between Calama and Buenos Aires?
Any hour in 09:00–18:00 Calama time is inside working hours in both cities.
Do Calama and Buenos Aires change clocks on the same date?
Only one of them does, so the gap between them changes twice a year even though neither city moved relative to the sun.