JST vs IST Time Difference
See the live time difference between Japan Standard Time and India Standard Time and find practical hours to schedule calls or meetings.
JST to IST Difference
Japan Standard Time is 3 hours 30 minutes ahead of India Standard Time. Use this page to view the current offset and compare hours side by side.
No DST Shift Impact
Neither Japan Standard Time nor India Standard Time currently observes daylight saving time. The difference stays consistent year-round without seasonal clock changes.
Best Meeting Hours
Find overlapping business hours with the visual comparison grid, hour-by-hour table, and calendar tools. Export meeting times with ICS download or add them to Google Calendar and Gmail.
How to Find the Time Difference Between JST and IST
JST (Japan Standard Time, UTC+9) is 3 hours 30 minutes ahead of IST (India Standard Time, UTC+5:30). Looking for Irish Standard Time? See /time-converter/ist-ireland-time-zone. Looking for Israel Standard Time? See /time-converter/ist-israel-time-zone.
Open the JST vs IST page: Go to
https://www.xconvert.com/time-converter/jst-vs-istto see Japan Standard Time and India Standard Time arranged on a visual comparison grid with a 24-hour timeline. This view is useful when you are planning a call between Tokyo and Bengaluru, scheduling support coverage between Japan and India, or checking whether a product handoff fits both teams’ workdays.Add comparison cities: Click + Add City and search for cities such as Tokyo, Mumbai, or Bengaluru to build out the schedule you want to compare visually. This helps remote teams in software, electronics manufacturing, consulting, and customer support line up working hours across Japan and India, especially when one side needs a morning meeting and the other needs a late-afternoon review.
Select a time range on the grid: Click Select if needed, then drag across the colored timeline on the Japan Standard Time row to highlight a meeting window in purple; you can move the range by dragging the center or adjust it with the left and right handles. For example, dragging a block that starts at 9:00 JST shows 5:30 IST, while 12:00 JST = 8:30 IST, 15:00 JST = 11:30 IST, and 18:00 JST = 14:30 IST, which makes it easy to see that a late afternoon slot in Japan still lands in the early afternoon in India.
Export and share the result: After selecting a range, use the export options for ICS download, Google Calendar, Gmail, Copy to clipboard, or Share link to send the agreed window to everyone involved. This is especially practical for cross-border vendor meetings, engineering standups, and client presentations, because each participant can receive the same time block in a format that fits their calendar or messaging workflow.
JST vs IST Offset Explained
Japan Standard Time is UTC+9, while India Standard Time is UTC+5:30. That means IST is 3 hours 30 minutes behind JST, or viewed the other way, JST is 3 hours 30 minutes ahead of IST. In practical scheduling terms, when it is 9:00 JST, it is 5:30 IST, and when it is 18:00 JST, it is 14:30 IST.
India Standard Time and Japan Standard Time both do not observe DST, so the time difference stays the same throughout the entire year. There are no seasonal clock changes to account for, which makes recurring planning much simpler for teams coordinating between Japan and India because the gap remains a fixed 3 hours 30 minutes in every month.
This stable offset is useful for regular business coordination between Japan and India in industries such as automotive supply chains, IT services, electronics, and consulting. A team in Japan can schedule a midday review at 12:00 JST = 8:30 IST, while an afternoon session at 15:00 JST = 11:30 IST often fits India’s late morning, making it easier to set repeat meetings without revisiting seasonal time rules.
Working Hours Overlap Between Japan Standard Time and India Standard Time
Because Japan Standard Time is 3 hours 30 minutes ahead of India Standard Time, the strongest overlap usually happens between Japan’s late morning through late afternoon and India’s morning through early afternoon. For example, 12:00 JST = 8:30 IST and 15:00 JST = 11:30 IST, which are often workable times for project syncs, procurement calls, and offshore delivery reviews.
This offset is especially useful for companies that need same-day communication without overnight scheduling. A Japan-based team can hold a late-day check-in at 18:00 JST = 14:30 IST, allowing India-based colleagues to respond during standard business hours rather than outside the workday.
JST to IST Conversion Examples for Daily Scheduling
A few anchor conversions make it faster to plan without confusion. 9:00 JST = 5:30 IST is an early start for India, 12:00 JST = 8:30 IST works better for India morning coordination, 15:00 JST = 11:30 IST fits mid-day collaboration well, and 18:00 JST = 14:30 IST is useful for end-of-day updates from Japan to India.
These examples are practical for recurring use cases such as sprint planning, supplier reviews, and interview scheduling. If a manager in Japan wants a meeting after lunch, 15:00 JST = 11:30 IST is often easier for India-based participants than 9:00 JST = 5:30 IST, which may be too early for a standard office schedule.
Frequently Asked Questions
What is the time difference between JST and India Standard Time?
Japan Standard Time is 3 hours 30 minutes ahead of India Standard Time. In the reverse direction, India Standard Time is 3 hours 30 minutes behind JST, so a meeting planned in Japan always appears earlier on the clock in India by that exact amount.
How do I convert JST to India Standard Time quickly?
The fastest way is to use a few fixed reference points and compare them on the grid. For example, 9:00 JST = 5:30 IST, 12:00 JST = 8:30 IST, 15:00 JST = 11:30 IST, and 18:00 JST = 14:30 IST; these examples cover common morning, noon, and afternoon business scheduling windows.
Does the JST and India Standard Time difference change during the year?
No, the difference does not change seasonally. Japan Standard Time does not observe DST and India Standard Time does not observe DST, so the gap stays fixed at 3 hours 30 minutes all year.
Is JST ahead of India Standard Time or behind it?
JST is ahead of India Standard Time. More specifically, JST is 3 hours 30 minutes ahead of IST, which means Japan reaches the same clock milestones earlier in the day than India does.
What are good meeting times between Japan and India?
Midday and afternoon in Japan often align well with morning and early afternoon in India. For example, 12:00 JST = 8:30 IST can work for early coordination, while 15:00 JST = 11:30 IST and 18:00 JST = 14:30 IST are often more practical for standard business-hour meetings.
Is IST India Standard Time or Irish Standard Time?
On this page, IST means India Standard Time (UTC+5:30). If you are looking for Irish Standard Time (UTC+1), use /time-converter/ist-ireland-time-zone; if you need Israel’s version, use /time-converter/ist-israel-time-zone.
Why is JST to India Standard Time easier to schedule than some other international time pairs?
This pair is easier to manage because the offset is fixed and there are no daylight saving changes on either side. Once a team knows that JST is 3 hours 30 minutes ahead of India Standard Time, they can reuse the same meeting pattern throughout the year without seasonal adjustments.