London to San Juan time zone converter

London
GMT
United Kingdom
22:52:00
Oct 29
  • 12
    AM
  • 1
    AM
  • 2
    AM
  • 3
    AM
  • 4
    AM
  • 5
    AM
  • 6
    AM
  • 7
    AM
  • 8
    AM
  • 9
    AM
  • 10
    AM
  • 11
    AM
  • 12
    PM
  • 1
    PM
  • 2
    PM
  • 3
    PM
  • 4
    PM
  • 5
    PM
  • 6
    PM
  • 7
    PM
  • 8
    PM
  • 9
    PM
  • 10
    PM
  • 11
    PM
San Juan
AST
Puerto Rico
18:52:00
Oct 29
  • 8
    PM
  • 9
    PM
  • 10
    PM
  • 11
    PM
  • 12
    AM
  • 1
    AM
  • 2
    AM
  • 3
    AM
  • 4
    AM
  • 5
    AM
  • 6
    AM
  • 7
    AM
  • 8
    AM
  • 9
    AM
  • 10
    AM
  • 11
    AM
  • 12
    PM
  • 1
    PM
  • 2
    PM
  • 3
    PM
  • 4
    PM
  • 5
    PM
  • 6
    PM
  • 7
    PM

This simple London to San Juan time zone converter allows you to quickly and visually understand the time difference between London (London) and San Juan (San Juan).

2026-10-29: 10:52 PM London

6:52 PM AST

London: UTC+00:00 · San Juan: UTC-04:00

Just hover over the colored hour tiles, and you’ll instantly see the corresponding time in both zones. The time difference between London and San Juan is 4 hours 0 minutes, with London being ahead. For example, if it is 10:52 PM London, the equivalent time in San Juan will be 6:52 PM AST.

London to San Juan hour-by-hour

2026-10-29 · London
LondonSan Juan
00:00 GMT20:00 (-1) AST
00:30 GMT20:30 (-1) AST
01:00 GMT21:00 (-1) AST
01:30 GMT21:30 (-1) AST
02:00 GMT22:00 (-1) AST
02:30 GMT22:30 (-1) AST
03:00 GMT23:00 (-1) AST
03:30 GMT23:30 (-1) AST
04:00 GMT00:00 AST
04:30 GMT00:30 AST
05:00 GMT01:00 AST
05:30 GMT01:30 AST
06:00 GMT02:00 AST
06:30 GMT02:30 AST
07:00 GMT03:00 AST
07:30 GMT03:30 AST
08:00 GMT04:00 AST
08:30 GMT04:30 AST
09:00 GMT05:00 AST
09:30 GMT05:30 AST
10:00 GMT06:00 AST
10:30 GMT06:30 AST
11:00 GMT07:00 AST
11:30 GMT07:30 AST
12:00 GMT08:00 AST
12:30 GMT08:30 AST
13:00 GMT09:00 AST
13:30 GMT09:30 AST
14:00 GMT10:00 AST
14:30 GMT10:30 AST
15:00 GMT11:00 AST
15:30 GMT11:30 AST
16:00 GMT12:00 AST
16:30 GMT12:30 AST
17:00 GMT13:00 AST
17:30 GMT13:30 AST
18:00 GMT14:00 AST
18:30 GMT14:30 AST
19:00 GMT15:00 AST
19:30 GMT15:30 AST
20:00 GMT16:00 AST
20:30 GMT16:30 AST
21:00 GMT17:00 AST
21:30 GMT17:30 AST
22:00 GMT18:00 AST
22:30 GMT18:30 AST
23:00 GMT19:00 AST
23:30 GMT19:30 AST

London

Europe/London

Uses IANA time zone rules for the selected date.

GMT · UTC+00:00

San Juan

America/Puerto_Rico

Uses IANA time zone rules for the selected date.

AST · UTC-04:00

Frequently Asked Questions

2026-10-29 · London ahead of San Juan: 4 hours 0 minutes. London: UTC+00:00; San Juan: UTC-04:00.

2026-10-29 · 22:52 London → 18:52 AST.

Weekday overlap (Mon–Fri, 09:00–17:00 in both places): London: 13:00 GMT – 17:00 GMT ↔ San Juan: 09:00 AST – 13:00 AST

London ahead of San Juan: 4 hours 0 minutes

Date → Select range → .ics. 2026-10-29 · 22:52 London → 18:52 AST.

London: Uses IANA time zone rules for the selected date. Next clock change: 2027-03-28 02:00 GMT+1 San Juan: Uses IANA time zone rules for the selected date. No clock change in the next 370 days