Porto Velho keeps UTC−4 all year. There is no daylight saving time, so the clock never changes.
Porto Velho and your time
Porto Velho at a glance
| Country | Brazil |
|---|---|
| Region | Rondônia |
| Time zone | America/Porto_Velho |
| UTC offset now | UTC−4 |
| Daylight saving time | Not observed since 1988 |
| Coordinates | 8.76° S, 63.90° W |
Time zone in Porto Velho
Porto Velho follows the America/Porto_Velho time zone and stays on UTC−4 all year. Clocks here last changed for daylight saving time in 1988; the tz database lists no change after that.
Watch out when booking with the capital: Brasília is 1 hour ahead of Porto Velho, because Brazil spans 4 offsets.
Clock changes in Porto Velho, 2026 and 2027
No clock changes are scheduled in Porto Velho for 2026 or 2027.
Porto Velho time compared with major cities
A 9:00 AM start in Porto Velho is 1:00 PM in London, 12:00 AM (next day) in Sydney and 5:00 AM in Los Angeles.
| City | Time now | Difference now | In January | In July | Shared office hours |
|---|---|---|---|---|---|
| Brasília | --:-- | 1 h ahead | 1 h ahead | 1 h ahead | 7 h |
| New York (United States) | --:-- | 1 h behind | 1 h behind | Same time | 7 h |
| Los Angeles (United States) | --:-- | 4 h behind | 4 h behind | 3 h behind | 4 h |
| London (United Kingdom) | --:-- | 4 h ahead | 4 h ahead | 5 h ahead | 4 h |
| Paris (France) | --:-- | 5 h ahead | 5 h ahead | 6 h ahead | 3 h |
| Dubai (United Arab Emirates) | --:-- | 8 h ahead | 8 h ahead | 8 h ahead | None |
| Mumbai (India) | --:-- | 9 h 30 min ahead | 9 h 30 min ahead | 9 h 30 min ahead | None |
| Singapore | --:-- | 12 h ahead | 12 h ahead | 12 h ahead | None |
| Tokyo (Japan) | --:-- | 13 h ahead | 13 h ahead | 13 h ahead | None |
| Sydney (Australia) | --:-- | 15 h ahead | 15 h ahead | 14 h ahead | None |
| UTC | --:-- | 4 h ahead | 4 h ahead | 4 h ahead | 4 h |
Because Porto Velho keeps one offset all year, any change in the gap comes from the other city’s daylight saving time. Compare the January and July columns.
Shared office hours counts the time when the clock reads between 9 AM and 5 PM in both cities on the same day.
Daylight in Porto Velho
Today
| Sunrise | --:-- |
|---|---|
| Sunset | --:-- |
| Day length | -- |
| Solar noon | --:-- |
Being in the tropics, Porto Velho sees little change in day length: the longest day (12 hours 38 minutes) is only 1 hour 1 minute longer than the shortest (11 hours 37 minutes). Sunrise stays between 5:45 AM and 6:32 AM all year.
Daylight through the year in Porto Velho
| Date | Sunrise | Sunset | Day length | |
|---|---|---|---|---|
| March equinox | March 20 | 6:20 AM | 6:26 PM | 12 h 7 min |
| June solstice | June 21 | 6:29 AM | 6:06 PM | 11 h 37 min |
| September equinox | September 22 | 6:05 AM | 6:12 PM | 12 h 6 min |
| December solstice | December 21 | 5:55 AM | 6:33 PM | 12 h 38 min |
When the sun is highest in Porto Velho
Clock time and sun time line up fairly well in Porto Velho: solar noon falls at about 12:15 PM on standard time.
Places close to Porto Velho
| City | Distance | Time now | Difference |
|---|---|---|---|
| Ji-Paraná | 319 km (198 mi) | --:-- | Same time |
| Rio Branco | 449 km (279 mi) | --:-- | 1 h behind |
| Vilhena | 603 km (375 mi) | --:-- | Same time |
| Manacapuru | 708 km (440 mi) | --:-- | Same time |
| Manaus | 762 km (473 mi) | --:-- | Same time |
Same time now, different rules
These places read the same time as Porto Velho today but follow different rules, so they can drift apart when clocks change.
More cities in Brazil
- São Paulo
- Rio de Janeiro
- Belo Horizonte
- Salvador
- Fortaleza
- Manaus
- Brasília
- Curitiba
- Recife
- Goiânia
- Belém
- Porto Alegre
All time zones and cities in Brazil
Plan around the time in Porto Velho
- Convert a time to or from Porto Velho: pick a date and time and see it in every city on your list.
- Add Porto Velho to your world clock to keep it next to your own time.
- Find a meeting time that falls inside office hours in Porto Velho and the other cities you work with.
- Open a full-screen clock for your own time zone.
Frequently asked questions
What time zone is Porto Velho in?
Porto Velho uses the America/Porto_Velho time zone, which is UTC−4 all year.
Does Porto Velho use daylight saving time?
Not any more. Porto Velho last changed its clocks for daylight saving time in 1988 and now stays on UTC−4 all year.
What is the time difference between Porto Velho and London?
Porto Velho is 4 hours behind London in January and 5 hours behind London in July, because London moves its clocks for daylight saving time and Porto Velho does not.
Is Porto Velho on the same time as Brasília?
No. Brasília is 1 hour ahead of Porto Velho, because Brazil uses more than one offset.
How long is the longest day in Porto Velho?
About 12 hours 38 minutes, around the December solstice. The shortest day, around the June solstice, has about 11 hours 37 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.