PST to Puerto Rico time conversion

PST time

PSTUTC-8Not observed

Time in Puerto Rico

ASTUTC-4Not observed

Puerto Rico is 4 hours ahead of PST.

PST is always UTC-8. Right now most places that use PST are on PDT (UTC-7): Puerto Rico is 3 hours ahead of PDT.

Time difference with your location

PST is 8 hours behind UTC. Compare with your local time →

Choose a date and time

Choose the local time in PST to convert it to Puerto Rico on that date.

Puerto Rico to PST time conversion

Skipped clock-change times are unavailable; a repeated time uses its first occurrence.

24-hour conversion chart · PST → Puerto Rico

This table converts each hour in PST to Puerto Rico on 2026-10-21.

  • Working hours
  • Outside working hours
  • Night hours
PSTPuerto RicoShared working hours
00:0012:00 AM 04:004:00 AM
01:001:00 AM 05:005:00 AM
02:002:00 AM 06:006:00 AM
03:003:00 AM 07:007:00 AM
04:004:00 AM 08:008:00 AM
05:005:00 AM 09:009:00 AM
06:006:00 AM 10:0010:00 AM
07:007:00 AM 11:0011:00 AM
08:008:00 AM 12:0012:00 PM ✓
09:009:00 AM 13:001:00 PM ✓
10:0010:00 AM 14:002:00 PM ✓
11:0011:00 AM 15:003:00 PM ✓
12:0012:00 PM 16:004:00 PM ✓
13:001:00 PM 17:005:00 PM ✓
14:002:00 PM 18:006:00 PM
15:003:00 PM 19:007:00 PM
16:004:00 PM 20:008:00 PM
17:005:00 PM 21:009:00 PM
18:006:00 PM 22:0010:00 PM
19:007:00 PM 23:0011:00 PM
20:008:00 PM 00:0012:00 AM +1 day
21:009:00 PM 01:001:00 AM +1 day
22:0010:00 PM 02:002:00 AM +1 day
23:0011:00 PM 03:003:00 AM +1 day

Quick conversion examples

These examples use PST (UTC-8) and Puerto Rico (UTC-4); choosing a date applies the local clock changes.

Conversion formula: Puerto Rico = PST + 4h · PDT + 3h.

PSTPuerto Rico
6:00 AM PST= 10:00 AM Puerto Rico
7:00 AM PST= 11:00 AM Puerto Rico
8:00 AM PST= 12:00 PM Puerto Rico
9:00 AM PST= 1:00 PM Puerto Rico
10:00 AM PST= 2:00 PM Puerto Rico
12:00 PM PST= 4:00 PM Puerto Rico
3:00 PM PST= 7:00 PM Puerto Rico
5:00 PM PST= 9:00 PM Puerto Rico
6:00 PM PST= 10:00 PM Puerto Rico
8:00 PM PST= 12:00 AM Puerto Rico (+1 day)

Overlapping meeting hours

The 08:00–18:00 working day in PST and Puerto Rico overlaps for 6 hours on 2026-10-21.

Shared working hours
08:00–14:00 PST · 12:00–18:00 Puerto Rico

Clock changes on both sides, 2026–2028

PST and Puerto Rico have the following local clock changes in 2026–2028; all times in the table are local to that side.

YearPSTPuerto Rico
2026

· 02:00 → 03:00
UTC-8 → UTC-7

· 02:00 → 01:00
UTC-7 → UTC-8

 No clock changes; UTC-4 all year.
2027

· 02:00 → 03:00
UTC-8 → UTC-7

· 02:00 → 01:00
UTC-7 → UTC-8

 No clock changes; UTC-4 all year.
2028

· 02:00 → 03:00
UTC-8 → UTC-7

· 02:00 → 01:00
UTC-7 → UTC-8

 No clock changes; UTC-4 all year.

At the start of 2026, Puerto Rico is 4 hours ahead of PST. The difference changes during the following periods.

  • From 2026-03-08 03:00 PDT until 2026-11-01 01:00 PST, Puerto Rico is 3 hours ahead of PDT.
  • From 2027-03-14 03:00 PDT until 2027-11-07 01:00 PST, Puerto Rico is 3 hours ahead of PDT.
  • From 2028-03-12 03:00 PDT until 2028-11-05 01:00 PST, Puerto Rico is 3 hours ahead of PDT.

Frequently asked questions

What time is 9 AM PST in Puerto Rico?

9:00 AM PST = 1:00 PM Puerto Rico, using UTC-8 and UTC-4. Choose a date above for the seasonal local time.

Does the time difference between PST and Puerto Rico change during the year?

Yes. During 2026–2028: Puerto Rico is 3 hours ahead of PST; Puerto Rico is 4 hours ahead of PST. The clock-change table gives the dates for both sides.

How do I tell whether it is day or night in Puerto Rico?

Read the Puerto Rico clock above: this guide counts 06:00–18:00 local time as daytime and the rest as nighttime, without using sunrise and sunset.

What is the best time to call between PST and Puerto Rico?

The shared 08:00–18:00 working window is 08:00–14:00 PST / 12:00–18:00 Puerto Rico, a total of 6 hours.

What is the time difference between PST and Puerto Rico now?

Right now, Puerto Rico is 4 hours ahead of PST. Conversion formula: Puerto Rico = PST + 4h · PDT + 3h.