PST to Colombo
+13h 30mPST
PSTSOURCEColombo
ISTGreen rows indicate typical business hours (9 AM - 5 PM)
PST and IST on the World Map
The map below highlights the PST (Pacific Standard Time) and IST (India Standard Time) timezone regions across the globe.
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.
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.
About Colombo
WikipediaColombo operates on Sri Lanka Time (SLST), UTC+5:30. Sharing India's timezone, Colombo is a key South Asian trade and tourism hub.
Sri Lanka Standard Time (SLST) uses UTC+5:30, same offset as India.
Time Conversion Guide: PST to Colombo
PST runs on Pacific Standard Time (PST) at UTC-08:00. Colombo runs on India Standard Time (IST) at UTC+05:30. That puts PST 13 hours 30 minutes ahead of Colombo — a difference of +13h 30m at the current offsets.
In practice, when it is 9:00 AM in PST it is 10:30 PM in Colombo. Midnight in PST is 1:30 PM in Colombo. Neither zone observes daylight saving time, so the offset between them stays constant all year.
PST to Colombo time conversion table
| PST (PST) | Colombo (IST) | Day |
|---|---|---|
| 12:00 AM | 1:30 PM | same day |
| 6:00 AM | 7:30 PM | same day |
| 7:00 AM | 8:30 PM | same day |
| 8:00 AM | 9:30 PM | same day |
| 9:00 AM | 10:30 PM | same day |
| 12:00 PM | 1:30 AM | next day |
| 3:00 PM | 4:30 AM | next day |
| 5:00 PM | 6:30 AM | next day |
| 6:00 PM | 7:30 AM | next day |
| 9:00 PM | 10:30 AM | next day |
Why people convert PST to Colombo time
- Scheduling a call from PST to Colombo: a 10:00 AM start in PST lands at 11:30 PM in Colombo, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +13h 30m gap: PST and Colombo 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 Colombo is 10:30 PM in PST.
- Watching a live event or market open: PST viewers need 10:30 PM in Colombo to catch a 9:00 AM start there, and 10:30 AM if the event is anchored to PST.
- Always state the zone abbreviation, not just the hour. "3:00 PM PST" 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 PST takes the early slot, the next week Colombo does.
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.
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.
Best time to call between PST and Colombo
With a +13h 30m offset there is no overlap inside a normal 9 AM – 5 PM day. Colombo opens at 9:00 AM IST, which is 10:30 PM in PST, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
PST and Colombo have no shared working hours because of the +13h 30m gap. Teams need to alternate early starts or rely on asynchronous handovers.
PST is 13 hours 30 minutes ahead of Colombo (PST UTC-08:00 → IST UTC+05:30). 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
PST
☀ Currently in DST
Standard: UTC-08:00 · DST: UTC-07:00
Clocks fall back on Sun, Nov 1, 2026
Colombo
Does not observe DST
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 PST and Colombo?
PST (PST, UTC-08:00) is 13 hours 30 minutes ahead of Colombo (IST, UTC+05:30). The gap is currently +13h 30m.
How do I convert PST time to Colombo time?
Add +13h 30m to PST local time. For example, 9:00 AM in PST is 10:30 PM in Colombo.
What time is it in Colombo right now?
Colombo uses IST at UTC+05:30. Use the live converter at the top of this page — it updates in real time and already accounts for the +13h 30m offset from PST.
What is the best time to call Colombo from PST?
There is no shared working-hours window because of the +13h 30m gap. The closest option is 1:00 PM in PST, which is 2:30 AM in Colombo.
Which is ahead, PST or Colombo?
PST is 13 hours 30 minutes ahead of Colombo. When it is 12:00 PM in PST it is 1:30 AM in Colombo.
Do PST and Colombo use different time zones?
PST uses PST at UTC-08:00, while Colombo (Sri Lanka) uses IST at UTC+05:30. The IANA identifiers are America/Los_Angeles and Asia/Colombo.
Does daylight saving time affect the PST–Colombo difference?
Neither zone observes daylight saving time, so the +13h 30m offset between PST and Colombo is fixed all year.
Which other cities share PST's time zone?
PST also covers Los Angeles, San Francisco, Seattle, Vancouver, San Diego, Portland, Las Vegas, Sacramento and 2 more.
Which countries use PST, PST's zone?
PST is used in United States (Pacific), Canada (British Columbia), Mexico (Baja California).
Is there a day difference between PST and Colombo?
Sometimes. The +13h 30m gap is large enough that 8:00 PM or later in PST already falls on the next day in Colombo.
What is the time difference between PST and Colombo?
Colombo is +13h 30m from PST.
What timezone is PST in?
PST operates on its local timezone.
What timezone is Colombo in?
Colombo operates on Sri Lanka Time (SLST), UTC+5:30. Sharing India's timezone, Colombo is a key South Asian trade and tourism hub.
What are the business hours in Colombo?
Standard business hours in Colombo are 9:00 AM - 5:00 PM IST.
Which countries use PST (Pacific Standard Time)?
PST is used in United States (Pacific), Canada (British Columbia), Mexico (Baja California).
Does PST observe daylight saving time?
Yes, PST switches to PDT during summer months.
What are some interesting facts about PST?
Silicon Valley and the world's biggest tech companies operate on Pacific Time. The Hollywood film industry runs on PST/PDT.
Which cities are in the IST timezone?
Major cities in the IST timezone include Mumbai, Delhi, Bangalore, Kolkata, Chennai, Hyderabad, Pune, Ahmedabad.
What is the UTC offset for IST?
India Standard Time (IST) is at UTC+05:30.
What should I know about the IST timezone?
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.
When is it midnight in PST, what time is it in Colombo?
When it is 12:00 AM (midnight) in PST (PST), it is +13h 30m later in Colombo (IST).
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