San Juan, Puerto Rico to EST to CST to IST Time Converter
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Quick answers
Selected conversion
8:00 am08:00 AST (UTC-4), Nov 15, 2026 = 7:00 am07:00 EST (UTC-5), Nov 15, 2026 = 6:00 am06:00 CST (UTC-6), Nov 15, 2026 = 5:30 pm17:30 IST (UTC+5:30), Nov 15, 2026
San Juan is 1 hour ahead of EST. San Juan is 2 hours ahead of CST. San Juan is 9 hours and 30 minutes behind IST.
How the time difference changes
San Juan, Puerto Rico to EST
For most of the year, San Juan, Puerto Rico and EDT have the same time. From Nov 1, 2026 to Mar 14, 2027, and from Nov 7, 2027 to Mar 12, 2028, San Juan, Puerto Rico is 1 hour ahead of EST.
For most of the year, working hours of 9:00 am to 6:00 pm in San Juan, Puerto Rico correspond to 9:00 am to 6:00 pm in EDT. At other times of the year, working hours of 9:00 am to 6:00 pm in San Juan, Puerto Rico correspond to 8:00 am to 5:00 pm in EST.For most of the year, working hours of 09:00 to 18:00 in San Juan, Puerto Rico correspond to 09:00 to 18:00 in EDT. At other times of the year, working hours of 09:00 to 18:00 in San Juan, Puerto Rico correspond to 08:00 to 17:00 in EST.
San Juan, Puerto Rico to CST
For most of the year, San Juan, Puerto Rico is 1 hour ahead of CDT. From Nov 1, 2026 to Mar 14, 2027, and from Nov 7, 2027 to Mar 12, 2028, San Juan, Puerto Rico is 2 hours ahead of CST.
For most of the year, working hours of 9:00 am to 6:00 pm in San Juan, Puerto Rico correspond to 8:00 am to 5:00 pm in CDT. At other times of the year, working hours of 9:00 am to 6:00 pm in San Juan, Puerto Rico correspond to 7:00 am to 4:00 pm in CST.For most of the year, working hours of 09:00 to 18:00 in San Juan, Puerto Rico correspond to 08:00 to 17:00 in CDT. At other times of the year, working hours of 09:00 to 18:00 in San Juan, Puerto Rico correspond to 07:00 to 16:00 in CST.
San Juan, Puerto Rico to IST
San Juan, Puerto Rico is 9 hours and 30 minutes behind IST year-round.
Working hours of 9:00 am to 6:00 pm in San Juan, Puerto Rico correspond to 6:30 pm to 3:30 am (next day) in IST.Working hours of 09:00 to 18:00 in San Juan, Puerto Rico correspond to 18:30 to 03:30 (next day) in IST.
Compare San Juan time with EST, CST, and IST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
AST (Atlantic Standard Time) is 1 hour ahead of Eastern Standard Time. AST (Atlantic Standard Time) is 2 hours ahead of Central Standard Time. AST (Atlantic Standard Time) is 9 hours and 30 minutes behind India Standard Time.
8:00 am08:00 in San Juan, Puerto Rico is 7:00 am07:00 in EST and is 6:00 am06:00 in CST and is 5:30 pm17:30 in IST
San Juan to EST call time
Best time for a conference call or a meeting is between 10am-6pm10:00-18:00 in San Juan which corresponds to 9am-5pm09:00-17:00 in EST.
San Juan to CST call time
Best time for a conference call or a meeting is between 11am-6pm11:00-18:00 in San Juan which corresponds to 9am-4pm09:00-16:00 in CST.
San Juan to IST call time
Best time for a conference call or a meeting is between 8:30am-9:30am08:30-09:30 in San Juan which corresponds to 6pm-7pm18:00-19:00 in IST. Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
8:00 am08:00 AST (Atlantic Standard Time) (San Juan, Puerto Rico). Offset UTC -4:00 hours
7:00 am07:00 Eastern Standard Time (EST). Offset UTC -5:00 hours
6:00 am06:00 Central Standard Time (CST). Offset UTC -6:00 hours
5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
8:00 am08:00 San Juan, Puerto Rico / 7:00 am07:00 EST / 6:00 am06:00 CST / 5:30 pm17:30 IST
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| San Juan, Puerto Rico | EST | CST | IST |
|---|---|---|---|
| 11:00pm previous day | 10:00pm previous day | 9:30am | |
| 12:00am | 11:00pm previous day | 10:30am | |
| 1:00am | 12:00am | 11:30am | |
| 2:00am | 1:00am | 12:30pm | |
| 3:00am | 2:00am | 1:30pm | |
| 4:00am | 3:00am | 2:30pm | |
| 5:00am | 4:00am | 3:30pm | |
| 6:00am | 5:00am | 4:30pm | |
| 7:00am | 6:00am | 5:30pm | |
| 8:00am | 7:00am | 6:30pm | |
| 9:00am | 8:00am | 7:30pm | |
| 10:00am | 9:00am | 8:30pm | |
| 11:00am | 10:00am | 9:30pm | |
| 12:00pm | 11:00am | 10:30pm | |
| 1:00pm | 12:00pm | 11:30pm | |
| 2:00pm | 1:00pm | 12:30am next day | |
| 3:00pm | 2:00pm | 1:30am next day | |
| 4:00pm | 3:00pm | 2:30am next day | |
| 5:00pm | 4:00pm | 3:30am next day | |
| 6:00pm | 5:00pm | 4:30am next day | |
| 7:00pm | 6:00pm | 5:30am next day | |
| 8:00pm | 7:00pm | 6:30am next day | |
| 9:00pm | 8:00pm | 7:30am next day | |
| 10:00pm | 9:00pm | 8:30am next day | |
| 23:00 previous day | 22:00 previous day | 09:30 | |
| 00:00 | 23:00 previous day | 10:30 | |
| 01:00 | 00:00 | 11:30 | |
| 02:00 | 01:00 | 12:30 | |
| 03:00 | 02:00 | 13:30 | |
| 04:00 | 03:00 | 14:30 | |
| 05:00 | 04:00 | 15:30 | |
| 06:00 | 05:00 | 16:30 | |
| 07:00 | 06:00 | 17:30 | |
| 08:00 | 07:00 | 18:30 | |
| 09:00 | 08:00 | 19:30 | |
| 10:00 | 09:00 | 20:30 | |
| 11:00 | 10:00 | 21:30 | |
| 12:00 | 11:00 | 22:30 | |
| 13:00 | 12:00 | 23:30 | |
| 14:00 | 13:00 | 00:30 next day | |
| 15:00 | 14:00 | 01:30 next day | |
| 16:00 | 15:00 | 02:30 next day | |
| 17:00 | 16:00 | 03:30 next day | |
| 18:00 | 17:00 | 04:30 next day | |
| 19:00 | 18:00 | 05:30 next day | |
| 20:00 | 19:00 | 06:30 next day | |
| 21:00 | 20:00 | 07:30 next day | |
| 22:00 | 21:00 | 08:30 next day |
San Juan Time Zone and Facts
Time Zone
San Juan Facts
Eastern Standard Time
Offset: EST is 5 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Bahamas, Canada, Cayman Islands, Haiti, Jamaica, Mexico, Panama, Turks and Caicos Islands, United States
Principal Cities: The largest city in the EST time zone is New York City in the United States, with about 8.804 million people. Other major cities in this time zone include Toronto, Montréal, Philadelphia, Port-au-Prince.
French: HNE - Heure Normale de l'Est
Spanish: ET - Tiempo del Este, ET - Zona Sureste
Today all shaded areas are on EST.
Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Eastern Daylight Time (EDT).
Start: Eastern Standard Time (EST) started on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks were set one hour back to Sunday, November 1, 2026, 1:00 am01:00. Standard time starts annually on the first Sunday of November.
End: Eastern Standard Time (EST) ends on Sunday, March 14, 2027 at 2:00 am02:00 local time and clocks are set one hour forward to Sunday, March 14, 2027, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.
See USA daylight saving time and upcoming clock changes worldwide.
EST representations, usage and related time zones
- -05 - basic short
- -0500 - basic
- -05:00 - extended
- -0500 - sign character (-) followed by a four digit time providing hours (05) and minutes (00) of the offset. Indicates an offset of five hours to the west of the zero meridian.
- Romeo - Military abbreviation for EST
- R - short form of 'Romeo'
- America/Atikokan
- America/Cancun
- America/Cayman
- America/Coral_Harbour
- America/Detroit
- America/Fort_Wayne
- America/Grand_Turk
- America/Indiana/Indianapolis
- America/Indiana/Marengo
- America/Indiana/Petersburg
- America/Indiana/Vevay
- America/Indiana/Vincennes
- America/Indiana/Winamac
- America/Indianapolis
- America/Iqaluit
- America/Jamaica
- America/Kentucky/Louisville
- America/Kentucky/Monticello
- America/Louisville
- America/Montreal
- America/Nassau
- America/New_York
- America/Nipigon
- America/Panama
- America/Pangnirtung
- America/Port-au-Prince
- America/Thunder_Bay
- America/Toronto
- Canada/Eastern
- EST
- EST5EDT
- Jamaica
- US/East-Indiana
- US/Eastern
- US/Michigan
- CDT - Central Daylight Time
- EST - Eastern Standard Time
- ET - Eastern Time
- COT - Colombia Time
- CST - Cuba Standard Time
- EASST - Easter Island Summer Time
- ECT - Ecuador Time
- PET - Peru Time
- R - Romeo Time Zone
Central Standard Time
Offset: CST is 6 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Belize, Canada, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, United States
Principal Cities: The largest city in the CST time zone is Mexico City in Mexico, with about 12.294 million people. Other major cities in this time zone include Chicago, Houston, Puebla, Santiago de Querétaro.
French: HNC - Heure Normale du Centre
Spanish: CT - Tiempo Central Estándar, CT - Zona Centro
Today all shaded areas are on CST.
Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Central Daylight Time (CDT).
Start: Central Standard Time (CST) started on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks were set one hour back to Sunday, November 1, 2026, 1:00 am01:00. Standard time starts annually on the first Sunday of November.
End: Central Standard Time (CST) ends on Sunday, March 14, 2027 at 2:00 am02:00 local time and clocks are set one hour forward to Sunday, March 14, 2027, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.
See USA daylight saving time and upcoming clock changes worldwide.
CST representations, usage and related time zones
- -06 - basic short
- -0600 - basic
- -06:00 - extended
- -0600 - sign character (-) followed by a four digit time providing hours (06) and minutes (00) of the offset. Indicates an offset of six hours to the west of the zero meridian.
- Sierra - Military abbreviation for CST
- S - short form of 'Sierra'
- America/Bahia_Banderas
- America/Belize
- America/Chicago
- America/Chihuahua
- America/Costa_Rica
- America/El_Salvador
- America/Guatemala
- America/Indiana/Knox
- America/Indiana/Tell_City
- America/Knox_IN
- America/Managua
- America/Matamoros
- America/Menominee
- America/Merida
- America/Mexico_City
- America/Monterrey
- America/North_Dakota/Beulah
- America/North_Dakota/Center
- America/North_Dakota/New_Salem
- America/Ojinaga
- America/Rainy_River
- America/Rankin_Inlet
- America/Regina
- America/Resolute
- America/Swift_Current
- America/Tegucigalpa
- America/Winnipeg
- CST6CDT
- Canada/Central
- Canada/Saskatchewan
- Mexico/General
- US/Central
- US/Indiana-Starke
- Central Standard Time - UTC -6
- China Standard Time - UTC +8
- Cuba Standard Time - UTC -5
- CST - Central Standard Time
- CT - Central Time
- MDT - Mountain Daylight Time
- EAST - Easter Island Standard Time
- GALT - Galapagos Time
- S - Sierra Time Zone
India Standard Time
Offset: IST is 5 hours and 30 minutes ahead of Greenwich Mean Time (GMT).
Countries using this time zone: India
Principal Cities: The largest city in the IST time zone is Mumbai in India, with about 12.692 million people. Other major cities in this time zone include Delhi, Bengaluru, Hyderabad, Ahmedabad.
Daylight Saving: Clocks in India Standard Time (IST) do not change for daylight saving time, so IST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
Current time in India: India time now
IST representations, usage and related time zones
- +0530 - basic
- +05:30 - extended
- +0530 - sign character (+) followed by a four digit time providing hours (05) and minutes (30) of the offset. Indicates an offset of five hours and thirty minutes to the east of the zero meridian.
- Asia/Calcutta
- Asia/Kolkata
- India Standard Time - UTC +5:30
- Irish Standard Time - UTC +1
- Israel Standard Time - UTC +2