Ubud, Bali to Waltham, MA: time difference
Waltham, MA is 12 h behind Ubud, Bali. Live clocks for both, the working hours they share, and how each one sits against your own time.
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Ubud, Bali 19:31 7:31 PM Waltham, MA 07:31 7:31 AM You –:–
19:31 7:31 PM
Central Indonesia Time · UTC+8
☀️ 05:56 · 🌙 18:14
07:31 7:31 AM
Eastern Daylight Time · UTC-4
☀️ 07:02 · 🌙 18:00
·
−12 h
Waltham, MA is 12 h behind Ubud, Bali.
When you, Ubud, Bali and Waltham, MA are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇮🇩 Ubud, Bali
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇺🇸 Waltham, MA
12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM 0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇮🇩 Ubud, Bali | 🇺🇸 Waltham, MA |
|---|---|---|
| Local time | 19:31 | 07:31 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Central Indonesia Time | Eastern Daylight Time |
| UTC offset | UTC+8 | UTC-4 |
| Offset from Ubud, Bali | — | −12 h |
| IANA zone | Asia/Makassar | America/New York |
| Daylight saving | Not observed | On summer time → UTC-5, Nov 1, 01:00 |
| Sunrise | 05:56 | 07:02 |
| Sunset | 18:14 | 18:00 |
| Daylight | 12 h 18 min | 10 h 58 min |
| People on this clock | 74,800 | 60,636 |
Compare Ubud, Bali with another city
More comparisons with Ubud, Bali: the time zones next to it and the far side of the clock.
Big time differences
Ubud, Bali and Waltham, MA: common questions
What is the time difference between Ubud, Bali, and Waltham, MA?
Waltham is 12 hours behind: it uses UTC−4, while Ubud is on UTC+8.
What time is it in Waltham, MA, when it is 9:00 AM in Ubud, Bali?
When it is 9:00 AM in Ubud, it is 9:00 PM (the previous day) in Waltham.
If it is 6:00 PM in Ubud, Bali, what time is it in Waltham, MA?
At 6:00 PM in Ubud, clocks in Waltham show 6:00 AM.
When do working hours in Ubud, Bali, and in Waltham, MA, overlap?
They don't: there are no shared working hours. The start of the day in Ubud (9:00 AM) is 9:00 PM (the previous day) in Waltham, and the start of the day in Waltham is 9:00 PM in Ubud.
Until what time in Ubud, Bali, is it still yesterday in Waltham, MA?
Before 12:00 PM in Ubud, the date in Waltham has not changed yet. From 12:00 PM in Waltham, it is already the next day in Ubud.
Is the time difference between Ubud, Bali, and Waltham, MA, the same all year?
No. Only Waltham switches to summer time, so the gap changes twice a year. From November 1, 2026, Waltham will be 13 hours behind Ubud.
