PST vs IST Time Difference

How to Find the Time Difference Between PST and IST

PST (Pacific Standard Time, UTC-8) and IST (India Standard Time, UTC+5:30) are 13 hours 30 minutes apart, with India Standard Time 13 hours 30 minutes ahead of Pacific Standard Time. This comparison is useful when you are scheduling a customer call between the west coast of North America and India, planning an offshore engineering handoff, or lining up support coverage across two continents.

Looking for Pitcairn Standard Time? See /time-converter/pst-pitcairn-time-zone.
Looking for Irish Standard Time? See /time-converter/ist-ireland-time-zone.
Looking for Israel Standard Time? See /time-converter/ist-israel-time-zone.

1. Open the PST vs IST page: Go to https://www.xconvert.com/time-converter/pst-vs-ist to see Pacific Standard Time and India Standard Time already loaded in the comparison grid. You’ll see a 24-hour horizontal timeline with colored work, evening, and night blocks, which is helpful if you are trying to find overlap between a California-based team and colleagues in India for product, IT, or customer support work.

2. Add comparison cities: Click + Add City and add cities such as Los Angeles, San Francisco, New Delhi, or Mumbai to compare practical business locations that use Pacific Standard Time and India Standard Time. This is especially useful for software outsourcing, semiconductor collaboration, and global customer operations, where teams often need to compare west coast US hours with India office hours.

3. Select a time range: Click Select, then drag across the grid to highlight a meeting window in purple; you can adjust it by dragging the left or right handles, or move the whole selection by dragging the center. For example, dragging across 9:00 PST to 12:00 PST shows 22:30 IST to 1:30 IST the next day, which quickly confirms that a late-morning Pacific Standard Time meeting lands late at night in India Standard Time and may not suit a daily standup.

4. Export and share the schedule: After selecting a range, use the export options for ICS download, Google Calendar, Gmail, Copy to clipboard, or Share link. That makes it easy to send a confirmed overlap window to a distributed engineering team, invite a client to a cross-border sales call, or share a support handoff slot so everyone sees the timing in their own local calendar.

PST vs IST Offset Explained

Pacific Standard Time (Pacific Standard Time, UTC-8) is 13 hours 30 minutes behind India Standard Time (India Standard Time, UTC+5:30). Put another way, India Standard Time is 13 hours 30 minutes ahead of Pacific Standard Time, so when it is 9:00 PST, it is 22:30 IST, and when it is 15:00 PST, it is 4:30 IST the next day.

Pacific Standard Time is the standard-time abbreviation used in parts of Canada, Mexico, and the United States, while India Standard Time is used in India. This matters for international coordination because a normal workday in Pacific Standard Time often overlaps with late evening or after-midnight hours in India Standard Time, which affects meeting planning for software development, managed services, finance back-office work, and customer support teams.

Pacific Standard Time also has a daylight saving counterpart: PDT. India Standard Time does not observe daylight saving time, so India keeps the same clock year-round, while Pacific regions may switch between Pacific Standard Time and PDT depending on the season; that means the difference you see on this page applies specifically to PST, not to daylight saving periods.

The fixed examples on this page show how quickly the date rolls over in India when you start from Pacific Standard Time. 12:00 PST = 1:30 IST (next day) and 18:00 PST = 7:30 IST (next day), so afternoon and evening activity on the Pacific side usually lands on the following calendar day in India, which is important when setting deadlines, release windows, or overnight support escalation times.

Practical Scheduling Between Pacific Standard Time and India Standard Time

Pacific Standard Time (Pacific Standard Time, UTC-8) and India Standard Time (India Standard Time, UTC+5:30) are commonly paired in global work arrangements because many US and Canadian companies coordinate with teams in India for engineering, QA, analytics, and round-the-clock support. The 13 hours 30 minutes gap means Pacific morning hours map to India late evening, while Pacific afternoon hours move into the next day in India, which is why many teams use either early Pacific meetings or asynchronous handoffs.

For business calls, the examples on this page are especially useful. 9:00 PST = 22:30 IST, which can work for urgent discussions but is already late in India, while 12:00 PST = 1:30 IST (next day) usually pushes beyond practical business hours for most India-based offices. If you are booking recurring meetings, these conversion points help you avoid setting a slot that repeatedly falls after midnight for one side.

For travel planning, the conversion matters when confirming arrival calls, airport pickups, hotel check-ins, or same-day meeting expectations after long-haul flights between North America and India. For remote teams, it also affects sprint ceremonies, production support rotations, and launch communications, because a Pacific Standard Time afternoon release can land early the next morning in India Standard Time, changing who is available to monitor issues in real time.

Common PST to IST Conversion Points

Pacific Standard Time (Pacific Standard Time, UTC-8) to India Standard Time (India Standard Time, UTC+5:30) conversions often come up in recurring schedules, especially for teams that work from the US west coast and India. The most useful reference points are 9:00 PST = 22:30 IST, 12:00 PST = 1:30 IST (next day), 15:00 PST = 4:30 IST (next day), and 18:00 PST = 7:30 IST (next day).

These examples show a clear pattern for planning. A morning meeting in Pacific Standard Time becomes a late-evening session in India Standard Time, while midday and later Pacific meetings move into the next calendar day in India. That is why many companies reserve Pacific early hours for live collaboration and use shared documents, ticketing systems, and recorded updates for everything that would otherwise fall at 1:30 IST or 4:30 IST.

The date shift is often the biggest source of confusion. If a manager says “let’s meet at noon PST,” the India side should read that as 1:30 IST the next day, not the same day, which is critical for onboarding sessions, vendor reviews, and release approvals that involve teams in both regions.

Frequently Asked Questions

What is the time difference between PST and IST?

Pacific Standard Time (Pacific Standard Time, UTC-8) is 13 hours 30 minutes behind India Standard Time (India Standard Time, UTC+5:30). The reverse is also true: India Standard Time is 13 hours 30 minutes ahead of Pacific Standard Time, so a same-day morning in Pacific time often becomes late evening in India, and later Pacific hours move into the next day.

How do I convert 9 AM PST to IST?

Pacific Standard Time converts 9:00 PST to 22:30 IST. This means a 9 AM meeting on the Pacific side lands at 10:30 PM in India, which may be workable for occasional client calls or urgent production issues but is usually late for a recurring daily meeting.

Is 12 PM PST the same day in IST?

No. 12:00 PST = 1:30 IST (next day), so the India time falls after midnight and on the following calendar date. This next-day shift is important when scheduling deliverables, calendar invites, and support handoffs, because the date can be just as important as the clock time.

Does India Standard Time observe daylight saving time?

India Standard Time does not observe daylight saving time and remains at UTC+5:30 throughout the year. Pacific Standard Time is the standard-time form of Pacific time, and its daylight saving counterpart is PDT, so seasonal clock changes affect the Pacific side rather than India.

Why does the PST to IST conversion often move to the next day?

Pacific Standard Time is 13 hours 30 minutes behind India Standard Time, which is a large enough gap that Pacific afternoon and evening times cross midnight in India. For example, 15:00 PST = 4:30 IST (next day) and 18:00 PST = 7:30 IST (next day), so many business interactions require careful attention to the calendar date, not just the hour.

Which countries use PST and IST?

Pacific Standard Time is used in parts of Canada, Mexico, and the United States. India Standard Time is used in India, which is why this comparison is common for North America–India coordination in technology, support operations, consulting, and international project management.

Is PST Pacific Standard Time or Pitcairn Standard Time?

On this page, PST means Pacific Standard Time (UTC-8). PST can also mean Pitcairn Standard Time (UTC-8); if you need that meaning, use /time-converter/pst-pitcairn-time-zone instead.

Is IST India Standard Time or Irish Standard Time?

On this page, IST means India Standard Time (UTC+5:30). IST can also refer to Irish Standard Time (UTC+1) or Israel Standard Time (UTC+2), and those are covered separately at /time-converter/ist-ireland-time-zone and /time-converter/ist-israel-time-zone.