🇭🇰 Hong Kong, Hong Kong (China)
24
- Hong Kong Standard Time
- UTC+8
- Daytime
☀️ 06:18 · 🌙 18:04 · 11 h 46 min
Hong Kong to Surabaya: time difference
Surabaya is 1 h behind Hong Kong. Live clocks for both, the working hours they share, and how each one sits against your own time.
−1 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Hong Kong 16:45 4:45 PM Surabaya 15:45 3:45 PM You –:–
16:45 4:45 PM
Hong Kong Standard Time · UTC+8
☀️ 06:18 · 🌙 18:04
15:45 3:45 PM
Western Indonesia Time · UTC+7
☀️ 05:10 · 🌙 17:24
·
−1 h
Surabaya is 1 h behind Hong Kong.
When you, Hong Kong and Surabaya are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇭🇰 Hong Kong
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
🇮🇩 Surabaya
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 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇭🇰 Hong Kong | 🇮🇩 Surabaya |
|---|---|---|
| Local time | 16:45 | 15:45 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Hong Kong Standard Time | Western Indonesia Time |
| UTC offset | UTC+8 | UTC+7 |
| Offset from Hong Kong | — | −1 h |
| IANA zone | Asia/Hong Kong | Asia/Jakarta |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:18 | 05:10 |
| Sunset | 18:04 | 17:24 |
| Daylight | 11 h 46 min | 12 h 13 min |
| People on this clock | 1,367,900 | 2,765,487 |
Compare Hong Kong with another city
More comparisons with Hong Kong: the time zones next to it and the far side of the clock.
Big time differences
Hong Kong and Surabaya: common questions
What is the time difference between Hong Kong and Surabaya?
Surabaya is 1 hour behind: it uses UTC+7, while Hong Kong is on UTC+8.
What time is it in Surabaya when it is 9:00 AM in Hong Kong?
When it is 9:00 AM in Hong Kong, it is 8:00 AM in Surabaya.
What time is it in Surabaya at the end of the working day in Hong Kong?
The working day in Hong Kong ends at 6:00 PM; in Surabaya it is 5:00 PM at that moment.
Is there a time when both Hong Kong and Surabaya are at work?
Yes: from 10:00 AM to 6:00 PM in Hong Kong (9:00 AM to 5:00 PM in Surabaya), the working days (9:00 AM–6:00 PM) overlap.
Until what time in Hong Kong is it still yesterday in Surabaya?
Before 1:00 AM in Hong Kong, the date in Surabaya has not changed yet. From 11:00 PM in Surabaya, it is already the next day in Hong Kong.
Is the time difference between Hong Kong and Surabaya the same all year?
Yes. Neither Hong Kong nor Surabaya switches to summer time, so the gap is always 1 hour.
