I to H Converter
Start by searching for a time zone, city, or town.
Add one or more places to compare local times, adjust the date, and share the result.
Quick answers
Selected conversion
9:00 pm21:00 I (UTC+9), Oct 13, 2026 = 8:00 pm20:00 H (UTC+8), Oct 13, 2026
I is 1 hour ahead of H.
I and H examples
These examples always use I (UTC+9) and H (UTC+8). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
I is 1 hour ahead of H.
How the time difference changes
I is 1 hour ahead of H year-round.
Working hours of 9:00 am to 5:00 pm in I correspond to 8:00 am to 4:00 pm in H.Working hours of 09:00 to 17:00 in I correspond to 08:00 to 16:00 in H.
Compare I time with H time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
India Time Zone is 1 hour ahead of Hotel Time Zone.
9:00 pm21:00 in I is 8:00 pm20:00 in H
I to H call time
Best time for a conference call or a meeting is between 10am-5pm10:00-17:00 in I which corresponds to 9am-4pm09:00-16:00 in H
9:00 pm21:00 India Time Zone (I). Offset UTC +9:00 hours
8:00 pm20:00 Hotel Time Zone (H). Offset UTC +8:00 hours
9:00 pm21:00 I / 8:00 pm20:00 H
Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.
| I | H |
|---|---|
| 11:00pm previous day | |
| 12:00am | |
| 1:00am | |
| 2:00am | |
| 3:00am | |
| 4:00am | |
| 5:00am | |
| 6:00am | |
| 7:00am | |
| 8:00am | |
| 9:00am | |
| 10:00am | |
| 11:00am | |
| 12:00pm | |
| 1:00pm | |
| 2:00pm | |
| 3:00pm | |
| 4:00pm | |
| 5:00pm | |
| 6:00pm | |
| 7:00pm | |
| 8:00pm | |
| 9:00pm | |
| 10:00pm | |
| 23:00 previous day | |
| 00:00 | |
| 01:00 | |
| 02:00 | |
| 03:00 | |
| 04:00 | |
| 05:00 | |
| 06:00 | |
| 07:00 | |
| 08:00 | |
| 09:00 | |
| 10:00 | |
| 11:00 | |
| 12:00 | |
| 13:00 | |
| 14:00 | |
| 15:00 | |
| 16:00 | |
| 17:00 | |
| 18:00 | |
| 19:00 | |
| 20:00 | |
| 21:00 | |
| 22:00 |
India Time Zone
Offset: I is 9 hours ahead of Greenwich Mean Time (GMT).
Daylight Saving: Clocks in India Time Zone (I) do not change for daylight saving time, so I stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
I representations, usage and related time zones
- +09 - basic short
- +0900 - basic
- +09:00 - extended
- +0900 - sign character (+) followed by a four digit time providing hours (09) and minutes (00) of the offset. Indicates an offset of nine hours to the east of the zero meridian.
- India - Military abbreviation for I
- I - short form of 'India'
- AWDT - Australian Western Daylight Time
- CHOST - Choibalsan Summer Time
- I - India Time Zone
- IRKST - Irkutsk Summer Time
- JST - Japan Standard Time
- KST - Korea Standard Time
- PWT - Palau Time
- TLT - East Timor Time
- ULAST - Ulaanbaatar Summer Time
- WIT - Eastern Indonesian Time
- YAKT - Yakutsk Time
Hotel Time Zone
Offset: H is 8 hours ahead of Greenwich Mean Time (GMT).
Daylight Saving: Clocks in Hotel Time Zone (H) do not change for daylight saving time, so H stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
H representations, usage and related time zones
- +08 - basic short
- +0800 - basic
- +08:00 - extended
- +0800 - sign character (+) followed by a four digit time providing hours (08) and minutes (00) of the offset. Indicates an offset of eight hours to the east of the zero meridian.
- Hotel - Military abbreviation for H
- H - short form of 'Hotel'
- ACT - ASEAN Common Time
- AWST - Australian Western Standard Time
- BNT - Brunei Darussalam Time
- CAST - Casey Time
- CHOT - Choibalsan Time
- CST - China Standard Time
- H - Hotel Time Zone
- HKT - Hong Kong Time
- HOVST - Hovd Summer Time
- IRKT - Irkutsk Time
- KRAST - Krasnoyarsk Summer Time
- MYT - Malaysia Time
- PHT - Philippine Time
- SGT - Singapore Time
- ULAT - Ulaanbaatar Time
- WITA - Central Indonesian Time