Time Conversion Calculator
PDT to IST Converter
Convert PDT to India Standard Time with date-aware logic, a 24-hour table, meeting planner, and copy-ready result.
Convert PDT to IST
Choose a date and time in PDT. The calculator will show the matching India Standard Time time.
Suggested meeting times
24-hour PDT to IST conversion table
Full-day conversion for the selected date.
| PDT | India Standard Time | Meeting note |
|---|---|---|
| Select a time and convert to generate the table. | ||
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PDT to IST: quick answer
To convert Pacific Daylight Time (PDT) to India Standard Time (IST), add 12 hours and 30 minutes. For example, 10:00 AM PDT is 10:30 PM IST. PDT is fixed at UTC-07:00 for this calculation, while IST remains at UTC+05:30 throughout the year.
Use PDT only when the source explicitly says Pacific Daylight Time or UTC-07:00. During the standard-time season in Los Angeles or another Pacific Time location, use PST at UTC-08:00 instead; IST is then 13 hours 30 minutes ahead.
How to convert PDT to IST
- Start with the PDT date and time.
- Add 12 hours and 30 minutes.
- If the total passes midnight, advance the IST date by one day.
- Keep the PDT and IST labels in the final result.
Example: 4:00 PM PDT + 12 hours 30 minutes = 4:30 AM IST on the next calendar date.
PDT, PST and Pacific Time are not interchangeable
| Label | UTC offset | IST difference |
|---|---|---|
| PDT | UTC-07:00 | IST is 12:30 ahead |
| PST | UTC-08:00 | IST is 13:30 ahead |
| Pacific Time | PDT or PST by date | Use a date-aware city or regional converter |
PDT is the daylight-time abbreviation, not a year-round regional label. If an invitation simply says PT, confirm the date and location before choosing PDT or PST.
Common PDT to IST conversions
| PDT | IST | Date note |
|---|---|---|
| 6:00 AM | 6:30 PM | Same day |
| 8:00 AM | 8:30 PM | Same day |
| 10:00 AM | 10:30 PM | Same day |
| 12:00 PM | 12:30 AM | Next day |
| 3:00 PM | 3:30 AM | Next day |
| 6:00 PM | 6:30 AM | Next day |
Calendar-date changes
PDT times from 11:30 AM onward convert to the next IST calendar date. A meeting at 11:00 PM PDT, for example, is 11:30 AM IST the next day. Include the date in calendar invites, support handoffs and release schedules.
Best PDT to India meeting window
A practical Pacific-side window is 6:00 AM-9:00 AM PDT, corresponding to 6:30 PM-9:30 PM IST. There is no complete 9-to-5 overlap, so recurring teams may rotate early and late meetings or use asynchronous handoffs.
Formula, methodology and verification
The calculation applies PDT at UTC-07:00 and IST at UTC+05:30, producing a fixed difference of 750 minutes. Verification covers half-hour arithmetic, same-day and next-day results, midnight rollover, month and year boundaries, 12-hour and 24-hour display formats, and reciprocal PDT to IST to PDT test cases.
Frequently asked questions
How far ahead is IST from PDT?
IST is exactly 12 hours and 30 minutes ahead of PDT.
What is 10:00 AM PDT in IST?
10:00 AM PDT is 10:30 PM IST on the same calendar date.
What is 4:00 PM PDT in India?
4:00 PM PDT is 4:30 AM IST on the next calendar date.
Is PDT the same as PST?
No. PDT is UTC-07:00 and PST is UTC-08:00, so their IST conversions differ by one hour.
Does India change its clocks for daylight saving?
No. Modern India Standard Time remains at UTC+05:30 throughout the year.
Related converters and official references
Starting with India time? Use the IST to PDT Converter. For winter Pacific Standard Time, use the PST to IST Converter. You can also compare the EDT to IST Converter.
References: IANA Time Zone Database, NIST local time FAQs, and CSIR-National Physical Laboratory India.