What is TimezoneCast?

TimezoneCast is a free, visual time zone converter and world clock. It lets you compare multiple cities side-by-side, drag an interactive cursor to find overlapping working hours, and export calendar invites — all without signing up.

How do I find the best meeting time across time zones?

Add each attendee's city using the Add city button, then drag the time cursor. The working-hours band highlights 9 AM–6 PM for each city. Look for where all bands overlap — that's your meeting window.

Can I share a time zone comparison with someone?

Yes. Click the Share button and copy the URL. It encodes your entire setup — cities, selected time, and date — into the link. Anyone who opens it sees exactly what you configured. No account required.

What cities and time zones does TimezoneCast support?

TimezoneCast supports hundreds of cities worldwide using the IANA timezone database. You can also add any fixed UTC offset from UTC−12 to UTC+14 for locations not tied to a named city.

How do I export a calendar invite?

Click the Event button, name your meeting, then click ICS to download a .ics calendar file. It opens in Google Calendar, Outlook, Apple Calendar, and any other app that supports the .ics format.

Is TimezoneCast free to use?

Yes, completely free. No ads, no sign-up, no usage limits. TimezoneCast is built for people who work across time zones.

What is the time difference between UTC and Tokyo?

Tokyo is 9 hours ahead of UTC. This offset may shift by one hour when either city transitions in or out of Daylight Saving Time.

What is a good meeting time between UTC and Tokyo?

There is no standard working-hours overlap between UTC and Tokyo. Consider early morning in one city or late afternoon in the other, or use async communication.

Does UTC observe Daylight Saving Time?

No. UTC (UTC) does not observe Daylight Saving Time. The offset remains constant year-round.

How do I convert UTC to JST manually?

To convert UTC to JST, add 9 hours to the UTC time. For example, 9:00 AM UTC = 6:00 PM JST. (Note: the exact offset is +9h and may vary with DST.)

UTC to JST Converter

Tokyo is currently 9 hours ahead of UTC.

Current Time

UTC

01:34

Tue, Apr 28 · UTC

Tokyo

10:34

Tue, Apr 28 · GMT+9

Daylight Saving Time Status

UTC

UTC does not observe Daylight Saving Time.

Tokyo

Tokyo does not observe Daylight Saving Time.

Best Meeting Times

UTC Time	Tokyo Time	Meeting Suitability
00:00	09:00	—
01:00	10:00	—
02:00	11:00	—
03:00	12:00	—
04:00	13:00	—
05:00	14:00	—
06:00	15:00	—
07:00	16:00	—
08:00	17:00	⚠️ Edge
09:00	18:00	⚠️ Edge
10:00	19:00	—
11:00	20:00	—
12:00	21:00	—
13:00	22:00	—
14:00	23:00	—
15:00	00:00+1d	—
16:00	01:00+1d	—
17:00	02:00+1d	—
18:00	03:00+1d	—
19:00	04:00+1d	—
20:00	05:00+1d	—
21:00	06:00+1d	—
22:00	07:00+1d	—
23:00	08:00+1d	—

🟢 Both cities within 9 AM–6 PM ⚠️ One city on edge of working hours

About This Time Zone Pair

UTC (UTC) is 9 hours ahead of Tokyo (GMT+9). When it's 9:00 AM in UTC, it's 6:00 PM in Tokyo.

Neither UTC nor Tokyo observes Daylight Saving Time, so the offset between them remains constant year-round.

There is no standard 9 AM–6 PM overlap between UTC and Tokyo. For recurring meetings, consider early morning in UTC or late afternoon in Tokyo, and use async tools when possible.

For one-off conversions, use the converter above. For recurring meetings, export an .ics calendar invite — attendees see the time in their local zone automatically.

Frequently Asked Questions

What is the time difference between UTC and Tokyo?: Tokyo is 9 hours ahead of UTC. This offset may shift by one hour when either city transitions in or out of Daylight Saving Time.
What is a good meeting time between UTC and Tokyo?: There is no standard working-hours overlap between UTC and Tokyo. Consider early morning in one city or late afternoon in the other, or use async communication.
Does UTC observe Daylight Saving Time?: No. UTC (UTC) does not observe Daylight Saving Time. The offset remains constant year-round.
How do I convert UTC to JST manually?: To convert UTC to JST, add 9 hours to the UTC time. For example, 9:00 AM UTC = 6:00 PM JST. (Note: the exact offset is +9h and may vary with DST.)