Daylight saving time is in effect in Puente Alto: the clock reads UTC−3 until Saturday, April 3, 2027, then returns to UTC−4.
Puente Alto and your time
Puente Alto at a glance
| Country | Chile |
|---|---|
| Region | Santiago Metropolitan |
| Time zone | America/Santiago |
| UTC offset now | UTC−3 |
| Daylight saving time | In effect until Apr 3, 2027 |
| Next clock change | Saturday, April 3, 2027 |
| Coordinates | 33.61° S, 70.58° W |
Puente Alto time zone and clock changes
The America/Santiago rules put Puente Alto on daylight saving time each year. The current period started on Sunday, September 6, 2026. When it ends, the clock goes back to UTC−4, and daylight saving time returns on Sunday, September 5, 2027.
Chile spans 2 offsets. Puente Alto shares its time with the capital, Santiago.
Clock changes in Puente Alto, 2026 and 2027
| Date | Change | New offset |
|---|---|---|
| Saturday, April 4, 2026 | Clocks go back 1 hour: 12:00 AM becomes 11:00 PM | UTC−4 |
| Sunday, September 6, 2026 | Clocks go forward 1 hour: 12:00 AM becomes 1:00 AM | UTC−3 |
| Saturday, April 3, 2027 | Clocks go back 1 hour: 12:00 AM becomes 11:00 PM | UTC−4 |
| Sunday, September 5, 2027 | Clocks go forward 1 hour: 12:00 AM becomes 1:00 AM | UTC−3 |
How far ahead or behind Puente Alto is
A 9:00 AM start in Puente Alto is 12:00 PM in London, 11:00 PM in Sydney and 4:00 AM in Los Angeles.
| City | Time now | Difference now | In January | In July | Shared office hours |
|---|---|---|---|---|---|
| New York (United States) | --:-- | 2 h behind | 2 h behind | Same time | 6 h |
| Los Angeles (United States) | --:-- | 5 h behind | 5 h behind | 3 h behind | 3 h |
| London (United Kingdom) | --:-- | 3 h ahead | 3 h ahead | 5 h ahead | 5 h |
| Paris (France) | --:-- | 4 h ahead | 4 h ahead | 6 h ahead | 4 h |
| Dubai (United Arab Emirates) | --:-- | 7 h ahead | 7 h ahead | 8 h ahead | 1 h |
| Mumbai (India) | --:-- | 8 h 30 min ahead | 8 h 30 min ahead | 9 h 30 min ahead | None |
| Singapore | --:-- | 11 h ahead | 11 h ahead | 12 h ahead | None |
| Tokyo (Japan) | --:-- | 12 h ahead | 12 h ahead | 13 h ahead | None |
| Sydney (Australia) | --:-- | 14 h ahead | 14 h ahead | 14 h ahead | None |
| UTC | --:-- | 3 h ahead | 3 h ahead | 4 h ahead | 5 h |
The difference is not fixed for every city: where the January and July columns disagree, one side moves its clocks and the other does not, or both move on different dates.
Shared office hours counts the time when the clock reads between 9 AM and 5 PM in both cities on the same day.
Sunrise, sunset and day length in Puente Alto
Today
| Sunrise | --:-- |
|---|---|
| Sunset | --:-- |
| Day length | -- |
| Solar noon | --:-- |
In Puente Alto, the days are longest around the December solstice (14 hours 23 minutes) and shortest around the June solstice (9 hours 55 minutes).
Daylight through the year in Puente Alto
| Date | Sunrise | Sunset | Day length | |
|---|---|---|---|---|
| March equinox | March 20 | 7:46 AM | 7:53 PM | 12 h 8 min |
| June solstice | June 21 | 7:47 AM | 5:42 PM | 9 h 55 min |
| September equinox | September 22 | 7:32 AM | 7:39 PM | 12 h 7 min |
| December solstice | December 21 | 6:29 AM | 8:52 PM | 14 h 23 min |
Sunrise and sunset jump by 1 hour on the days the clocks change, even though the daylight itself changes only by a minute or two.
When the sun is highest in Puente Alto
Clock time and sun time line up fairly well in Puente Alto: solar noon falls at about 12:40 PM on standard time and 1:40 PM during daylight saving time.
Cities near Puente Alto
Distance is not the same as time: Mendoza (Argentina) lies just 180 km (112 mi) away, yet its clock is on the same time as Puente Alto.
| City | Distance | Time now | Difference |
|---|---|---|---|
| Santiago | 18 km (11 mi) | --:-- | Same time |
| Lampa | 46 km (28 mi) | --:-- | Same time |
| Colina | 46 km (29 mi) | --:-- | Same time |
| Rancagua | 64 km (40 mi) | --:-- | Same time |
| Quilpué | 102 km (63 mi) | --:-- | Same time |
| Viña del Mar | 112 km (69 mi) | --:-- | Same time |
| Curicó | 164 km (102 mi) | --:-- | Same time |
| Mendoza (Argentina) | 180 km (112 mi) | --:-- | Same time |
Same time now, different rules
These places read the same time as Puente Alto today but follow different rules, so they can drift apart when clocks change.
- São Paulo (Brazil)
- Buenos Aires (Argentina)
- Salvador (Brazil)
- Fortaleza (Brazil)
- Córdoba (Argentina)
- Recife (Brazil)
More cities in Chile
All time zones and cities in Chile
Plan around the time in Puente Alto
- Convert a time to or from Puente Alto: pick a date and time and see it in every city on your list.
- Add Puente Alto to your world clock to keep it next to your own time.
- Find a meeting time that falls inside office hours in Puente Alto and the other cities you work with.
- Open a full-screen clock for your own time zone.
Frequently asked questions
What time zone is Puente Alto in?
Puente Alto uses the America/Santiago time zone: UTC−4 in standard time and UTC−3 during daylight saving time.
When do the clocks change in Puente Alto?
The next change is on Saturday, April 3, 2027 at 12:00 AM, when clocks go back 1 hour to UTC−4. They go forward again on Sunday, September 5, 2027.
What is the time difference between Puente Alto and London?
Puente Alto is 3 hours behind London in January and 5 hours behind London in July, because the two are on daylight saving time at opposite times of the year.
Does the difference between Puente Alto and London ever change at other times?
Yes, for a few weeks. From March 27 to April 3 and September 5 to October 30, the gap is 4 hours, because the two switch on different dates.
Is Puente Alto on the same time as Santiago?
Yes. Puente Alto and Santiago both use UTC−3 right now.
How long is the longest day in Puente Alto?
About 14 hours 23 minutes, around the December solstice. The shortest day, around the June solstice, has about 9 hours 55 minutes of daylight.
Time zone rules: IANA tz database, version 2026e. Place names and coordinates: GeoNames. Sunrise and sunset are calculated from the coordinates and can differ by a minute or two from local almanacs.