Sri Lanka to PST
-13h 30mSri Lanka
ISTSOURCEPST
PSTGreen rows indicate typical business hours (9 AM - 5 PM)
IST and PST on the World Map
The map below highlights the IST (India Standard Time) and PST (Pacific Standard Time) timezone regions across the globe.
IST – India Standard Time
UTC+05:30India Standard Time (IST) is the time zone for India and Sri Lanka, 5 hours and 30 minutes ahead of UTC.
- •India is 10 hours 30 minutes ahead of EST and 5 hours 30 minutes ahead of GMT.
- •India uses a single time zone despite spanning 30° of longitude.
- •IST is one of only a handful of time zones with a 30-minute offset.
- •IST is the most populous single time zone in the world with over 1.4 billion people.
- •The Bombay Stock Exchange (BSE) and National Stock Exchange (NSE) operate on IST.
PST – Pacific Standard Time
UTC-08:00Pacific Standard Time (PST) is the time zone for the US and Canadian Pacific coast, 8 hours behind UTC.
- •Silicon Valley and the world's biggest tech companies operate on Pacific Time.
- •The Hollywood film industry runs on PST/PDT.
- •PST is 3 hours behind EST, creating a significant business hours gap.
- •Vancouver, Canada's third-largest city, uses PST.
Comparing Time Zones: Sri Lanka and PST
Sri Lanka runs on India Standard Time (IST) at UTC+05:30. PST runs on Pacific Standard Time (PST) at UTC-08:00. That puts Sri Lanka 13 hours 30 minutes behind PST — a difference of -13h 30m at the current offsets.
In practice, when it is 9:00 AM in Sri Lanka it is 7:30 PM in PST on the previous day. Midnight in Sri Lanka is 10:30 AM in PST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Sri Lanka to PST time conversion table
| Sri Lanka (IST) | PST (PST) | Day |
|---|---|---|
| 12:00 AM | 10:30 AM | previous day |
| 6:00 AM | 4:30 PM | previous day |
| 7:00 AM | 5:30 PM | previous day |
| 8:00 AM | 6:30 PM | previous day |
| 9:00 AM | 7:30 PM | previous day |
| 12:00 PM | 10:30 PM | previous day |
| 3:00 PM | 1:30 AM | same day |
| 5:00 PM | 3:30 AM | same day |
| 6:00 PM | 4:30 AM | same day |
| 9:00 PM | 7:30 AM | same day |
Why people convert Sri Lanka to PST time
- Scheduling a call from Sri Lanka to PST: a 10:00 AM start in Sri Lanka lands at 8:30 PM in PST the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -13h 30m gap: Sri Lanka and PST have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in PST is 7:30 PM in Sri Lanka.
- Coordinating a Sri Lanka-based team with PST contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.
- Always state the zone abbreviation, not just the hour. "3:00 PM IST" is unambiguous; "3 PM" across a -13h 30m gap is not.
- With a -13h 30m gap there is no shared 9-to-5 window, so alternate the early start: one week Sri Lanka takes the early slot, the next week PST does.
About IST (India Standard Time)
India Standard Time (IST) is the time observed throughout India and Sri Lanka. It is based on the 82.5°E meridian, passing through Mirzapur in Uttar Pradesh. India uses a single time zone despite spanning roughly 30° of longitude, which has been debated. IST does not observe daylight saving time. India is the world's most populous country, making IST one of the most-used time zones globally. The IT outsourcing industry and call centers operate primarily on IST, making the EST-to-IST conversion one of the most searched timezone conversions.
About PST (Pacific Standard Time)
Pacific Standard Time (PST) covers the west coast of North America, including tech hubs like San Francisco and Seattle, and entertainment capital Los Angeles. The Pacific Time Zone is home to Silicon Valley and the world's largest technology companies. During summer, clocks advance to Pacific Daylight Time (PDT, UTC-07:00). PST is also observed in Baja California, Mexico.
Best time to call between Sri Lanka and PST
With a -13h 30m offset there is no overlap inside a normal 9 AM – 5 PM day. PST opens at 9:00 AM PST, which is 7:30 PM in Sri Lanka, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
Sri Lanka and PST have no shared working hours because of the -13h 30m gap. Teams need to alternate early starts or rely on asynchronous handovers.
Sri Lanka is 13 hours 30 minutes behind PST (IST UTC+05:30 → PST UTC-08:00). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
Sri Lanka
Does not observe DST
PST
☀ Currently in DST
Standard: UTC-08:00 · DST: UTC-07:00
Clocks fall back on Sun, Nov 1, 2026
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between Sri Lanka and PST?
Sri Lanka (IST, UTC+05:30) is 13 hours 30 minutes behind PST (PST, UTC-08:00). The gap is currently -13h 30m.
How do I convert Sri Lanka time to PST time?
Add -13h 30m to Sri Lanka local time. For example, 9:00 AM in Sri Lanka is 7:30 PM in PST (previous day).
What time is it in PST right now?
PST uses PST at UTC-08:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -13h 30m offset from Sri Lanka.
What is the best time to call PST from Sri Lanka?
There is no shared working-hours window because of the -13h 30m gap. The closest option is 1:00 PM in Sri Lanka, which is 11:30 PM in PST.
Which is behind, Sri Lanka or PST?
Sri Lanka is 13 hours 30 minutes behind PST. When it is 12:00 PM in Sri Lanka it is 10:30 PM in PST.
Do Sri Lanka and PST use different time zones?
Sri Lanka (Sri Lanka) uses IST at UTC+05:30, while PST uses PST at UTC-08:00. The IANA identifiers are Asia/Colombo and America/Los_Angeles.
Does daylight saving time affect the Sri Lanka–PST difference?
Neither zone observes daylight saving time, so the -13h 30m offset between Sri Lanka and PST is fixed all year.
Which other cities share Sri Lanka's time zone?
IST also covers Mumbai, Delhi, Bangalore, Kolkata, Chennai, Hyderabad, Pune, Ahmedabad and 4 more.
Which countries use IST, Sri Lanka's zone?
IST is used in India, Sri Lanka.
Is there a day difference between Sri Lanka and PST?
Sometimes. The -13h 30m gap is large enough that 8:00 PM or later in Sri Lanka already falls on the in PST.
What is the time difference between Sri Lanka and PST?
PST is -13h 30m from Sri Lanka.
What timezone is Sri Lanka in?
Sri Lanka operates on its local timezone.
What timezone is PST in?
PST operates on its local timezone.
Which countries use IST (India Standard Time)?
IST is used in India, Sri Lanka.
Does IST observe daylight saving time?
No, IST does not observe daylight saving time and remains at UTC+05:30 year-round.
What are some interesting facts about IST?
India is 10 hours 30 minutes ahead of EST and 5 hours 30 minutes ahead of GMT. India uses a single time zone despite spanning 30° of longitude.
Which cities are in the PST timezone?
Major cities in the PST timezone include Los Angeles, San Francisco, Seattle, Vancouver, San Diego, Portland, Las Vegas, Sacramento.
What is the UTC offset for PST?
Pacific Standard Time (PST) is at UTC-08:00. During daylight saving time, it shifts to PDT.
What should I know about the PST timezone?
Silicon Valley and the world's biggest tech companies operate on Pacific Time. The Hollywood film industry runs on PST/PDT.
When is it midnight in Sri Lanka, what time is it in PST?
When it is 12:00 AM (midnight) in Sri Lanka (IST), it is -13h 30m later in PST (PST).
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