Puerto Rico
AST
CT/CDT
Central Time
GMT -5

Time Difference

AST (Atlantic Standard Time) is 1 hour ahead of Central Daylight Time
10:00 am10:00 in San Juan, Puerto Rico is 9:00 am09:00 in CDT

San Juan to CT call time
Best time for a conference call or a meeting is between 10am-6pm in San Juan which corresponds to 8am-4pm in CT

10:00 am10:00 AST (Atlantic Standard Time) (San Juan, Puerto Rico). Offset UTC -4:00 hours
9:00 am09:00 Central Daylight Time (CDT). Offset UTC -5:00 hours

10:00 am10:00 San Juan, Puerto Rico / 9:00 am09:00 CDT

San Juan, Puerto Rico CT
12am (midnight) 11pm
1am 12am (midnight)
2am 1am
3am 2am
4am 3am
5am 4am
6am 5am
7am 6am
8am 7am
9am 8am
10am 9am
11am 10am
12pm (noon) 11am
1pm 12pm (noon)
2pm 1pm
3pm 2pm
4pm 3pm
5pm 4pm
6pm 5pm
7pm 6pm
8pm 7pm
9pm 8pm
10pm 9pm
11pm 10pm
0:00 23:00
1:00 0:00
2:00 1:00
3:00 2:00
4:00 3:00
5:00 4:00
6:00 5:00
7:00 6:00
8:00 7:00
9:00 8:00
10:00 9:00
11:00 10:00
12:00 11:00
13:00 12:00
14:00 13:00
15:00 14:00
16:00 15:00
17:00 16:00
18:00 17:00
19:00 18:00
20:00 19:00
21:00 20:00
22:00 21:00
23:00 22:00

San Juan Information

Time Zone

Abbreviation / Name
AST - Atlantic Standard Time
UTC / GMT Offset
-4:00 hours during Atlantic Standard Time, currently in use.

San Juan Facts

Country
Puerto Rico
Alternative Names
Caparra, Ciudad de Puerto Rico, Portorico, Prico, Puerto Rico, SJU, Saint Iuan, Saint John de Porto Rico, Sainte Jean de Porto-rico, San Chouan, San Chuanas, San Huan, San Ian de Porto Rico, San Ioanni, San Jean de Portorico, San Juan, San Juan Batista de Puerto Rico, San Juan Bautistade de Puerto Rico, San Juan de Puerto Rico, San Khuan, San Xoan, San Xoán, San Xuan, San-Juano, San-Khuan, Sanhuana, The City of Saint John, Ville de Porto-Rico, Ville de Sainte Jean de Porto Rico, can van, saenhwan, san hwn, san khwan, san-khuani, sana hu'ana, sana huraana, sanfuan, sanhuan, sheng hu an, Σαν Χουάν, Сан Хуан, Сан-Хуан, Սան Խուան, סן חואן, سان خوآن, سان خوان, सान हुआन, সান হুৱান, ਸਾਨ ਹੁਆਨ, சான் வான், ซานฮวน, სან-ხუანი, サンフアン, 圣胡安, 산후안, 샌환
Population
418,140
Currency
Dollar (USD)
Geographic Coordinates
18° 27' N Latitude / 66° 06' W Longitude

Central Time

Central Time (PT) is a general term used to describe the areas that observe either the Central Standard Time (CST) or Central Daylight Time (CDT) in the United States and Canada. CT is not static but switches between CDT and CST.

Territories observing the time zone are primarily in North and Central America. It runs through several Mexican and U.S. states, as well as several Canadian provinces and Central American countries.

Countries: It is used in following countries: Belize, Canada, Costa Rica, Guatemala, Honduras, Mexico, Nicaragua, El Salvador, United States.

Principal Cities: The largest city in the CST timezone is Mexico City from Mexico with population about 12.294 million people. Other major cities in the area are Chicago, Houston, Iztapalapa, Ecatepec.

French: HNC - Heure Normale du Centre

Spanish: CT - Tiempo Central Estándar, CT - Zona Centro

Central Time (PT) is a general term used to describe the areas that observe either the Central Standard Time (CST) or Central Daylight Time (CDT) in the United States and Canada. CT is not static but switches between CDT and CST.

Territories observing the time zone are primarily in North and Central America. It runs through several Mexican and U.S. states, as well as several Canadian provinces and Central American countries.

Countries: It is used in following countries: Belize, Canada, Costa Rica, Guatemala, Honduras, Mexico, Nicaragua, El Salvador, United States.

Principal Cities: The largest city in the CST timezone is Mexico City from Mexico with population about 12.294 million people. Other major cities in the area are Chicago, Houston, Iztapalapa, Ecatepec.

French: HNC - Heure Normale du Centre

Spanish: CT - Tiempo Central Estándar, CT - Zona Centro

CT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -06 - basic short
  • -0600 - basic
  • -06:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0600 - sign character (-) followed by a four digit time providing hours (06) and minutes (00) of the offset. Indicates six hour and zero minutes time differences to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Sierra - Military abbreviation for CT
  • S - short form of 'Sierra'
CT Abbreviation: Several time zones share CT abbreviation and it could refer to these time zones
  • Central Time - UTC -6
  • Chuuk Time - UTC +10
Time zones with the GMT -6 offset:
  • CST - Central Standard Time
  • CT - Central Time
  • MDT - Mountain Daylight Time
  • EAST - Easter Island Standard Time
  • GALT - Galapagos Time
  • S - Sierra Time Zone