Time difference between Guidonia Montecelio and Hong Kong
Hong Kong is 6 hours ahead of Guidonia Montecelio.
Local time in both cities
Guidonia Montecelio · Italy
18:50
ItalyHong Kong · China
00:50
ChinaHong Kong is 6 hours ahead of Guidonia Montecelio.
already the next day
Time zones
| Guidonia Montecelio | Europe/Rome · UTC+02:00 |
|---|---|
| Hong Kong | Asia/Hong_Kong · UTC+08:00 |
Guidonia Montecelio is currently on daylight saving time (UTC+02:00). Next change: 2026-10-25 02:00.
Hong Kong does not observe daylight saving and stays on UTC+08:00 all year.
Hour-by-hour conversion
Calculated for 2026-09-26 local time in Guidonia Montecelio. The two places start and end daylight saving on different dates, so another day can give a different result.
| Guidonia Montecelio (source) | Hong Kong (target) |
|---|---|
| 00:00 | 06:00 |
| 01:00 | 07:00 |
| 02:00 | 08:00 |
| 03:00 | 09:00 |
| 04:00 | 10:00 |
| 05:00 | 11:00 |
| 06:00 | 12:00 |
| 07:00 | 13:00 |
| 08:00 | 14:00 |
| 09:00 | 15:00 |
| 10:00 | 16:00 |
| 11:00 | 17:00 |
| 12:00 | 18:00 |
| 13:00 | 19:00 |
| 14:00 | 20:00 |
| 15:00 | 21:00 |
| 16:00 | 22:00 |
| 17:00 | 23:00 |
| 18:00 | 00:00 next day |
| 19:00 | 01:00 next day |
| 20:00 | 02:00 next day |
| 21:00 | 03:00 next day |
| 22:00 | 04:00 next day |
| 23:00 | 05:00 next day |
Other common differences from Guidonia Montecelio
FAQ
- How many hours apart are Guidonia Montecelio and Hong Kong right now?
- The answer at the top of the page is calculated for the current moment and states which side is ahead. The gap changes during the year, because the two places usually start and end daylight saving on different dates.
- Is this difference the same all year?
- Not necessarily. Guidonia Montecelio uses Europe/Rome and Hong Kong uses Asia/Hong_Kong; if either observes daylight saving, the gap shifts during the year. Use “Convert a specific date and time” below to calculate it for a given day.
- How do I read the conversion table?
- The left column lists each whole hour in Guidonia Montecelio; the right column is the local time in Hong Kong at that same instant, with date rollovers marked. On the day clocks jump forward, some hours do not exist locally — the table says so instead of showing a plausible but wrong value.