Bolu keeps UTC+3 all year. There is no daylight saving time, so the clock never changes.
Bolu and your time
Bolu at a glance
| Country | Türkiye |
|---|---|
| Region | Bolu |
| Time zone | Europe/Istanbul |
| UTC offset now | UTC+3 |
| Daylight saving time | Not observed since 2016 |
| Coordinates | 40.74° N, 31.61° E |
Which time zone Bolu uses
Local time in Bolu is UTC+3 year round, under the Europe/Istanbul rules. Daylight saving time was used in the past, most recently in 2016, and no future change is scheduled.
Bolu is on the same time as the rest of Türkiye, including the capital, Ankara.
Clock changes in Bolu, 2026 and 2027
No clock changes are scheduled in Bolu for 2026 or 2027.
How far ahead or behind Bolu is
When it is 9:00 AM in Bolu, it is 1:00 AM in New York, 5:00 PM in Sydney and 10:00 PM (previous day) in Los Angeles.
| City | Time now | Difference now | In January | In July | Shared office hours |
|---|---|---|---|---|---|
| New York (United States) | --:-- | 8 h behind | 8 h behind | 7 h behind | None |
| Los Angeles (United States) | --:-- | 11 h behind | 11 h behind | 10 h behind | None |
| London (United Kingdom) | --:-- | 3 h behind | 3 h behind | 2 h behind | 5 h |
| Paris (France) | --:-- | 2 h behind | 2 h behind | 1 h behind | 6 h |
| Dubai (United Arab Emirates) | --:-- | 1 h ahead | 1 h ahead | 1 h ahead | 7 h |
| Mumbai (India) | --:-- | 2 h 30 min ahead | 2 h 30 min ahead | 2 h 30 min ahead | 5 h 30 min |
| Singapore | --:-- | 5 h ahead | 5 h ahead | 5 h ahead | 3 h |
| Tokyo (Japan) | --:-- | 6 h ahead | 6 h ahead | 6 h ahead | 2 h |
| Sydney (Australia) | --:-- | 8 h ahead | 8 h ahead | 7 h ahead | None |
| UTC | --:-- | 3 h behind | 3 h behind | 3 h behind | 5 h |
Bolu never changes its clocks, but many of these cities do. Where the January and July columns disagree, the gap shifts when the other city moves to or from daylight saving time.
Shared office hours is the part of a 9 AM to 5 PM local working day that both cities have in common. Weekends are not taken into account.
Sunrise, sunset and day length in Bolu
Today
| Sunrise | --:-- |
|---|---|
| Sunset | --:-- |
| Day length | -- |
| Solar noon | --:-- |
The earliest sunrise in Bolu is at 5:22 AM on June 14, and the latest sunset at 8:29 PM on June 27.
Daylight through the year in Bolu
| Date | Sunrise | Sunset | Day length | |
|---|---|---|---|---|
| March equinox | March 20 | 6:57 AM | 7:05 PM | 12 h 8 min |
| June solstice | June 21 | 5:22 AM | 8:28 PM | 15 h 6 min |
| September equinox | September 23 | 6:42 AM | 6:49 PM | 12 h 8 min |
| December solstice | December 21 | 8:14 AM | 5:29 PM | 9 h 15 min |
Clock time and sun time in Bolu
The clock in Bolu runs ahead of the sun. Solar noon, the moment the sun is highest, comes at about 12:55 PM on standard time. That is why sunrise and sunset both come late here.
Places close to Bolu
All the places listed below keep the same time as Bolu.
| City | Distance | Time now | Difference |
|---|---|---|---|
| Düzce | 39 km (24 mi) | --:-- | Same time |
| Ereğli | 63 km (39 mi) | --:-- | Same time |
| Zonguldak | 81 km (50 mi) | --:-- | Same time |
| Karabük | 100 km (62 mi) | --:-- | Same time |
| Adapazarı | 101 km (63 mi) | --:-- | Same time |
| Bartın | 117 km (73 mi) | --:-- | Same time |
| Çubuk | 133 km (82 mi) | --:-- | Same time |
| Polatlı | 137 km (85 mi) | --:-- | Same time |
More cities in Türkiye
All time zones and cities in Türkiye
Plan around the time in Bolu
- Convert a time to or from Bolu: pick a date and time and see it in every city on your list.
- Add Bolu to your world clock to keep it next to your own time.
- Find a meeting time that falls inside office hours in Bolu and the other cities you work with.
- Open a full-screen clock for your own time zone.
Frequently asked questions
What time zone is Bolu in?
Bolu uses the Europe/Istanbul time zone, which is UTC+3 all year.
Does Bolu use daylight saving time?
Not any more. Bolu last changed its clocks for daylight saving time in 2016 and now stays on UTC+3 all year.
What is the time difference between Bolu and New York?
Bolu is 8 hours ahead of New York in January and 7 hours ahead of New York in July, because New York moves its clocks for daylight saving time and Bolu does not.
Is Bolu on the same time as Ankara?
Yes. Bolu and Ankara both use UTC+3 right now.
How long is the longest day in Bolu?
About 15 hours 6 minutes, around the June solstice. The shortest day, around the December solstice, has about 9 hours 15 minutes of daylight.
Why is the sun not highest at noon in Bolu?
Clock time follows the time zone, not the sun. Bolu lies west of the line its offset is based on, so solar noon comes at about 12:55 PM on standard time.
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.