GMT to JST time zone converter

GMT
Greenwich Mean Time
20:03:05
Mar 4
  • Mar
    4
  • 1
    AM
  • 2
    AM
  • 3
    AM
  • 4
    AM
  • 5
    AM
  • 6
    AM
  • 7
    AM
  • 8
    AM
  • 9
    AM
  • 10
    AM
  • 11
    AM
  • 0
    PM
  • 1
    PM
  • 2
    PM
  • 3
    PM
  • 4
    PM
  • 5
    PM
  • 6
    PM
  • 7
    PM
  • 8
    PM
  • 9
    PM
  • 10
    PM
  • 11
    PM
JST
Japan Standard Time
05:03:05
Mar 5
  • 9
    AM
  • 10
    AM
  • 11
    AM
  • 0
    PM
  • 1
    PM
  • 2
    PM
  • 3
    PM
  • 4
    PM
  • 5
    PM
  • 6
    PM
  • 7
    PM
  • 8
    PM
  • 9
    PM
  • 10
    PM
  • 11
    PM
  • Mar
    5
  • 1
    AM
  • 2
    AM
  • 3
    AM
  • 4
    AM
  • 5
    AM
  • 6
    AM
  • 7
    AM
  • 8
    AM

GMT to JST hour-by-hour

GMTJST
00:00 GMT09:00 JST
00:30 GMT09:30 JST
01:00 GMT10:00 JST
01:30 GMT10:30 JST
02:00 GMT11:00 JST
02:30 GMT11:30 JST
03:00 GMT12:00 JST
03:30 GMT12:30 JST
04:00 GMT13:00 JST
04:30 GMT13:30 JST
05:00 GMT14:00 JST
05:30 GMT14:30 JST
06:00 GMT15:00 JST
06:30 GMT15:30 JST
07:00 GMT16:00 JST
07:30 GMT16:30 JST
08:00 GMT17:00 JST
08:30 GMT17:30 JST
09:00 GMT18:00 JST
09:30 GMT18:30 JST
10:00 GMT19:00 JST
10:30 GMT19:30 JST
11:00 GMT20:00 JST
11:30 GMT20:30 JST
12:00 GMT21:00 JST
12:30 GMT21:30 JST
13:00 GMT22:00 JST
13:30 GMT22:30 JST
14:00 GMT23:00 JST
14:30 GMT23:30 JST
15:00 GMT00:00 (+1) JST
15:30 GMT00:30 (+1) JST
16:00 GMT01:00 (+1) JST
16:30 GMT01:30 (+1) JST
17:00 GMT02:00 (+1) JST
17:30 GMT02:30 (+1) JST
18:00 GMT03:00 (+1) JST
18:30 GMT03:30 (+1) JST
19:00 GMT04:00 (+1) JST
19:30 GMT04:30 (+1) JST
20:00 GMT05:00 (+1) JST
20:30 GMT05:30 (+1) JST
21:00 GMT06:00 (+1) JST
21:30 GMT06:30 (+1) JST
22:00 GMT07:00 (+1) JST
22:30 GMT07:30 (+1) JST
23:00 GMT08:00 (+1) JST
23:30 GMT08:30 (+1) JST
Convert GMT to JST

This simple GMT to JST time zone converter allows you to quickly and visually understand the time difference between Greenwich Mean Time (GMT) and Japan Standard Time (JST).

Just hover over the colored hour tiles, and you’ll instantly see the corresponding time in both zones. The time difference between GMT and JST is 9 hours, with JST being ahead. For example, if it is GMT, the equivalent time in JST will be .

This tool makes it easy to convert GMT to JST for scheduling meetings, coordinating across time zones, or planning events. With just a glance, you can manage the time difference efficiently and avoid any confusion.

GMT

Greenwich Mean Time (GMT) is a time zone that is often used as a standard time reference for the world. It is based on the line of longitude that passes through the Royal Observatory in Greenwich, London, UK, which is at 0 degrees longitude.

JST

Japan Standard Time (JST) is the time zone used in Japan. It is nine hours ahead of Coordinated Universal Time (UTC+9). JST is used throughout Japan and is the only time zone used in the country.

Frequently Asked Questions

The time difference between GMT and JST depends on the specific locations within these time zones and daylight saving time (DST) adjustments. For example, when converting EST to IST, you need to account for the standard offset plus any DST changes. Use our GMT to JST converter to see the exact current time difference, which automatically updates for DST transitions.

To convert GMT to JST, simply use our time converter above. Enter a specific time like 10am GMT and instantly see the equivalent time in JST. Our GMT to JST converter automatically handles standard time differences and daylight saving time changes, making timezone conversion effortless for scheduling international calls and meetings.

The best time to call from GMT to JST is typically during overlapping business hours, usually between 9 AM and 6 PM in both time zones. Our GMT to JST time converter highlights these overlapping windows in green, making it easy to find convenient calling times. For example, if you're scheduling a call from EST to IST, morning hours in EST often work well.

You can easily check whether GMT is ahead of or behind JST using our side-by-side comparison table. The table displays the current time in both GMT and JST simultaneously, clearly showing which timezone is ahead. This is particularly useful when planning calls or meetings across time zones like EST to IST or PST to GMT.

Scheduling a meeting between GMT and JST is straightforward with our timezone converter. Simply select your preferred time in either timezone, and our tool instantly shows the corresponding time in the other zone. The visual time grid helps you identify mutually convenient hours, considering both work schedules and the time difference between GMT and JST.