Mumbai
India Standard Time
--:--
Tokyo
Japan Standard Time
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The exact hour gap shifts with DST — dial it in below.
1PM IST → JST · DST-aware · Shareable1PM IST → JST · DST-aware
1PM IST to JST
translated & shareable.
India Standard Time (Mumbai) and Japan Standard Time (Tokyo). This page opens with 1PM IST preset—shift the calendar, compare tables, and copy a link your team can reopen anytime.
1
Check live clocks
See current time in Mumbai (IST) and Tokyo (JST) with active DST rules before you dial in the deadline date.
2
Set the deadline
The workspace opens with 1PM IST preset—pick the actual calendar date, read day-shift warnings, and business-hours badges in Tokyo.
3
Share or explore
Copy a shareable URL, scan the 24-hour table below, or jump to related deadline routes for the same zone pair.
Searching "1pm IST to JST"? When a colleague says "1pm IST" they mean 1pm in India Standard Time (Mumbai). In Japan Standard Time (Tokyo) that's approximately 4:30 PM JST on the same day.
Mumbai is currently 3.5 hours behind Tokyo. This conversion is stable year-round because neither timezone observes DST. For other times between these zones see the 24-hour table further down, or jump to the full IST → JST converter. Open the full IST → JST converter.
Deadline workspace
Set the source, use the answer.
Live conversion
1
Source deadline
time and date the client gave you
2
Timezone route
Swap the direction any time if you are checking from your side.
Your local deadline
16:30
GMT+9 · 2026-06-24 · Wed
Source
13:00
GMT+5:30
Countdown
Deadline passed
Planning status
Business hours
Business hoursWed
Google CalendarHour-by-hour map
24-hour reference: IST → JST
Every civil hour today from Mumbai (IST) translated into Tokyo (JST). Compare any slot to your preset (1PM IST); day badges mark midnight crossings and times follow your browser’s IANA database.
ISTJST
Hourly wall-clock map for today — midnight crossings show as day shifts.
IST with part-of-day icon
JST arrow and converted time
Day
- 00:0003:30Same day
- 01:0004:30Same day
- 02:0005:30Same day
- 03:0006:30Same day
- 04:0007:30Same day
- 05:0008:30Same day
- 06:0009:30Same day
- 07:0010:30Same day
- 08:0011:30Same day
- 09:0012:30Same day
- 10:0013:30Same day
- 11:0014:30Same day
- 12:0015:30Same day
- 13:0016:30Same day
- 14:0017:30Same day
- 15:0018:30Same day
- 16:0019:30Same day
- 17:0020:30Same day
- 18:0021:30Same day
- 19:0022:30Same day
- 20:0023:30Same day
- 21:0000:30Next day
- 22:0001:30Next day
- 23:0002:30Next day
Uses your browser's IANA zone data — choose another date in the converter for historical or future days.
Preset shortcuts
Common deadlines
Five typical office times (morning through early evening) as a quick sanity check. Dial exact dates and share links in the deadline workspace above.
ISTJST
Shortcut rows for typical meeting hours — see the full 24-hour grid above.
IST with part-of-day icon
JST arrow and converted time
Day
- 09:0012:30Same day
- 12:0015:30Same day
- 15:0018:30Same day
- 17:0020:30Same day
- 18:0021:30Same day
Uses your browser's IANA zone data — choose another date in the converter for historical or future days.
FAQ
1PM IST to JST
DST behaviour, sharing preset deadlines, and how to read business-hours badges in the target city.
See the live converter above — it calculates the exact JST time corresponding to 1pm IST, including any day shift and DST effects.
Keep exploring
Related hubs & shortcuts
Other preset times for this pair, nearby deadline routes, city clocks, meeting overlap, and index pages—picked for this route so you can move on without searching.