Tokyo to San Juan Time Converter
San Juan is -13h behind Tokyo
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FROM
Tokyo
Japan
UTC+09:00
TO
San Juan
Puerto Rico
UTC-04:00
Date-aware conversion
Convert a specific date and time
Result
Thu, May 28, 2026 20:33
Tokyo: Friday, May 29, 2026 9:33 AM GMT+9 to San Juan: Thursday, May 28, 2026 8:33 PM AST.
San Juan is 13h behind Tokyo on this date
24-Hour Comparison
Every hour in Tokyo and the corresponding time in San Juan. Green rows indicate business hours in San Juan.
Time zones
Tokyo uses Asia/Tokyo (GMT+9) and San Juan uses America/Puerto_Rico (AST). Neither city observes daylight saving time in this dataset.
Best use
Use the green rows to spot normal working hours in San Juan. For teams across more cities, open the meeting planner and compare up to five locations.
Plan a meetingMeeting guidance
Best time for Tokyo and San Juan
There is no full business-hour overlap in the 24-hour table, so use a custom time or rotate meeting times for fairness. For important calls, check the meeting date because the offset can change when either location enters or leaves daylight saving time.
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City context
About these cities
About Tokyo
Tokyo is located in Japan (Asia). It uses the Asia/Tokyo timezone with a standard offset of UTC+09:00. It does not observe Daylight Saving Time. See the full Tokyo time page for live clock and planning details.
About San Juan
San Juan is located in Puerto Rico (North America). It uses the America/Puerto_Rico timezone with a standard offset of UTC-04:00. It does not observe Daylight Saving Time. See the full San Juan time page for live clock and planning details.
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