PDT to Sri Lanka
+12h 30mPDT
PDTSOURCESri Lanka
ISTGreen rows indicate typical business hours (9 AM - 5 PM)
PDT and IST on the World Map
The map below highlights the PDT (Pacific Daylight Time) and IST (India Standard Time) timezone regions across the globe.
PDT – Pacific Daylight Time
UTC-07:00Pacific Daylight Time (PDT) is the daylight saving offset on the US/Canada Pacific coast, 7 hours behind UTC.
- •PDT aligns with MST at UTC-07:00.
- •Tech company earnings calls often reference PDT/PST times.
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.
Understanding the +12h 30m Gap: PDT vs Sri Lanka
PDT runs on Pacific Daylight Time (PDT) at UTC-07:00. Sri Lanka runs on India Standard Time (IST) at UTC+05:30. That puts PDT 12 hours 30 minutes ahead of Sri Lanka — a difference of +12h 30m at the current offsets.
In practice, when it is 9:00 AM in PDT it is 9:30 PM in Sri Lanka. Midnight in PDT is 12:30 PM in Sri Lanka. Neither zone observes daylight saving time, so the offset between them stays constant all year.
PDT to Sri Lanka time conversion table
| PDT (PDT) | Sri Lanka (IST) | Day |
|---|---|---|
| 12:00 AM | 12:30 PM | same day |
| 6:00 AM | 6:30 PM | same day |
| 7:00 AM | 7:30 PM | same day |
| 8:00 AM | 8:30 PM | same day |
| 9:00 AM | 9:30 PM | same day |
| 12:00 PM | 12:30 AM | next day |
| 3:00 PM | 3:30 AM | next day |
| 5:00 PM | 5:30 AM | next day |
| 6:00 PM | 6:30 AM | next day |
| 9:00 PM | 9:30 AM | next day |
Why people convert PDT to Sri Lanka time
- Scheduling a call from PDT to Sri Lanka: a 10:00 AM start in PDT lands at 10:30 PM in Sri Lanka, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +12h 30m gap: PDT and Sri Lanka 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 Sri Lanka is 9:30 PM in PDT.
- Booking travel or deliveries: tracking Sri Lanka local time against PDT keeps pickup windows and arrival estimates honest across the +12h 30m offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM PDT" is unambiguous; "3 PM" across a +12h 30m gap is not.
- With a +12h 30m gap there is no shared 9-to-5 window, so alternate the early start: one week PDT takes the early slot, the next week Sri Lanka does.
About PDT (Pacific Daylight Time)
Pacific Daylight Time (PDT) is observed from March to November on the Pacific coast. During PDT, the west coast is 7 hours behind UTC and only 2 hours behind the east coast's EDT.
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 PDT and Sri Lanka
With a +12h 30m offset there is no overlap inside a normal 9 AM – 5 PM day. Sri Lanka opens at 9:00 AM IST, which is 9:30 PM in PDT, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
PDT and Sri Lanka have no shared working hours because of the +12h 30m gap. Teams need to alternate early starts or rely on asynchronous handovers.
PDT is 12 hours 30 minutes ahead of Sri Lanka (PDT UTC-07:00 → 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
PDT
☀ Currently in DST
Standard: UTC-08:00 · DST: UTC-07:00
Clocks fall back on Sun, Nov 1, 2026
Sri Lanka
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 PDT and Sri Lanka?
PDT (PDT, UTC-07:00) is 12 hours 30 minutes ahead of Sri Lanka (IST, UTC+05:30). The gap is currently +12h 30m.
How do I convert PDT time to Sri Lanka time?
Add +12h 30m to PDT local time. For example, 9:00 AM in PDT is 9:30 PM in Sri Lanka.
What time is it in Sri Lanka right now?
Sri Lanka 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 +12h 30m offset from PDT.
What is the best time to call Sri Lanka from PDT?
There is no shared working-hours window because of the +12h 30m gap. The closest option is 1:00 PM in PDT, which is 1:30 AM in Sri Lanka.
Which is ahead, PDT or Sri Lanka?
PDT is 12 hours 30 minutes ahead of Sri Lanka. When it is 12:00 PM in PDT it is 12:30 AM in Sri Lanka.
Do PDT and Sri Lanka use different time zones?
PDT uses PDT at UTC-07:00, while Sri Lanka (Sri Lanka) uses IST at UTC+05:30. The IANA identifiers are America/Los_Angeles and Asia/Colombo.
Does daylight saving time affect the PDT–Sri Lanka difference?
Neither zone observes daylight saving time, so the +12h 30m offset between PDT and Sri Lanka is fixed all year.
Which other cities share PDT's time zone?
PDT also covers Los Angeles, San Francisco, Seattle, Vancouver, Portland.
Which countries use PDT, PDT's zone?
PDT is used in United States (Pacific), Canada (British Columbia), Mexico (Baja California).
Is there a day difference between PDT and Sri Lanka?
Sometimes. The +12h 30m gap is large enough that 8:00 PM or later in PDT already falls on the next day in Sri Lanka.
What is the time difference between PDT and Sri Lanka?
Sri Lanka is +12h 30m from PDT.
What timezone is PDT in?
PDT operates on its local timezone.
What timezone is Sri Lanka in?
Sri Lanka operates on its local timezone.
Which countries use PDT (Pacific Daylight Time)?
PDT is used in United States (Pacific), Canada (British Columbia), Mexico (Baja California).
Does PDT observe daylight saving time?
Yes, PDT switches to PST during summer months.
What are some interesting facts about PDT?
PDT aligns with MST at UTC-07:00. Tech company earnings calls often reference PDT/PST times.
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 PDT, what time is it in Sri Lanka?
When it is 12:00 AM (midnight) in PDT (PDT), it is +12h 30m later in Sri Lanka (IST).
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See every conversion from PDT →·See every conversion from Sri Lanka →