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Sao Tome and PrincipeGMT
UTC+0
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Central Europe is on summer time: CEST (UTC+2) until Sun, Oct 25.

Quick answers

Selected conversion

12:00 pm12:00 GMT (UTC+0), Oct 22, 2026 = 2:00 pm14:00 CEST (UTC+2), Oct 22, 2026

São Tomé is 2 hours behind CEST.

How the time difference changes

For most of the year, Sao Tome is 2 hours behind CEST. From Oct 25, 2026 to Mar 28, 2027, Sao Tome is 1 hour behind CET.

For most of the year, working hours of 9:00 am to 6:00 pm in Sao Tome correspond to 11:00 am to 8:00 pm in CEST. At other times of the year, working hours of 9:00 am to 6:00 pm in Sao Tome correspond to 10:00 am to 7:00 pm in CET.For most of the year, working hours of 09:00 to 18:00 in Sao Tome correspond to 11:00 to 20:00 in CEST. At other times of the year, working hours of 09:00 to 18:00 in Sao Tome correspond to 10:00 to 19:00 in CET.

Compare Sao Tome time with CET time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

GMT (Greenwich Mean Time) is 2 hours behind Central European Summer Time.
12:00 pm12:00 in Sao Tome, Sao Tome and Principe is 2:00 pm14:00 in CEST

São Tomé to CEST call time
Best time for a conference call or a meeting is between 9am-4pm09:00-16:00 in São Tomé which corresponds to 11am-6pm11:00-18:00 in CEST

12:00 pm12:00 GMT (Greenwich Mean Time) (Sao Tome, Sao Tome and Principe). Offset UTC 0:00 hours
2:00 pm14:00 Central European Summer Time (CEST). Offset UTC +2:00 hours

12:00 pm12:00 Sao Tome, Sao Tome and Principe / 2:00 pm14:00 CEST

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Hourly time comparison
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São Tomé Time Zone and Facts

Time Zone

Abbreviation / Offset
GMT – Greenwich Mean Time, UTC+0 (no daylight saving time)

São Tomé Facts

Country
Sao Tome and Principe
Alternative Names
Salazar, San Tomas, San Tome, San Tomé, San Tomė, San-Tameh, San-Tome, Santo Tome, Santo Tomé, Santome, Sao Thome, Sao Tome, Sao Tomee, Sao Tomé, Sao-Tomeo, Soeo Tome, Svaety Tomas, Svätý Tomáš, Sào Thomé, São Tomé, Söo Tomé, TMS, Urbs Sancti Thomae, cavo tome, sa'o tome, sangtume, santome, savea team, saw twmy, saywtwmh, sea tu me, sheng duo mei, Σάο Τομέ, Сан-Тамэ, Сан-Томе, Сао Томе, Սան Տոմե, סאו טומה, ساؤ ٹومے, سائوتومه, ساو تومي, ساو تۆمێ, ساو ٹومے, साओ टोमे, সাও টোমে, ਸਾਓ ਤੋਮੇ, சாவோ தொமே, സാവോ ടോം, เซาตูเม, སའོ་ཊོ་མེ།, სან-ტომე, ሳን ቶሜ, サントメ, 圣多美, 聖多美, 상투메
Population
53,300
Currency
Dobra (STN)
Geographic Coordinates
0° 20' N Latitude / 6° 43' E Longitude
International Dialing Code
+239

Central European Time

Offset: CET is 1 hour ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Albania, Algeria, Andorra, Austria, Belgium, Bosnia and Herzegovina, Croatia, Czechia, Denmark, France, Germany, Gibraltar, Hungary, Italy, Kosovo, Liechtenstein, Luxembourg, Malta, Monaco, Montenegro, Netherlands, North Macedonia, Norway, Poland, San Marino, Serbia, Slovakia, Slovenia, Spain, Svalbard and Jan Mayen, Sweden, Switzerland, Tunisia, Vatican City

Principal Cities: The largest city in the CET time zone is Berlin in Germany, with about 3.426 million people. Other major cities in this time zone include Madrid, Algiers, Rome, Paris.

German: MEZ - Mitteleuropäische Zeit

Map of the areas on Central European Time (CET)
CET all year CET part of the year

Today the lighter areas are on UTC+2 (CEST).

Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Central European Summer Time (CEST).

123456789101112End: Central European Time (CET) ended on Sunday, March 29, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 29, 2026, 3:00 am03:00 local daylight time instead. Standard time ends annually on the last Sunday of March.

123456789101112Start: Central European Time (CET) starts on Sunday, October 25, 2026 at 3:00 am03:00 local time and clocks are set one hour back to Sunday, October 25, 2026, 2:00 am02:00. Standard time starts annually on the last Sunday of October.

See upcoming clock changes worldwide.

CET representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +01 - basic short
  • +0100 - basic
  • +01:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0100 - sign character (+) followed by a four digit time providing hours (01) and minutes (00) of the offset. Indicates an offset of one hour to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Alpha - Military abbreviation for CET
  • A - short form of 'Alpha'
IANA/Olson: Reflects CET time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Africa/Algiers
  • Africa/Ceuta
  • Africa/Tunis
  • Arctic/Longyearbyen
  • Atlantic/Jan_Mayen
  • CET
  • Europe/Amsterdam
  • Europe/Andorra
  • Europe/Belgrade
  • Europe/Berlin
  • Europe/Bratislava
  • Europe/Brussels
  • Europe/Budapest
  • Europe/Busingen
  • Europe/Copenhagen
  • Europe/Gibraltar
  • Europe/Ljubljana
  • Europe/Luxembourg
  • Europe/Madrid
  • Europe/Malta
  • Europe/Monaco
  • Europe/Oslo
  • Europe/Paris
  • Europe/Podgorica
  • Europe/Prague
  • Europe/Rome
  • Europe/San_Marino
  • Europe/Sarajevo
  • Europe/Skopje
  • Europe/Stockholm
  • Europe/Tirane
  • Europe/Vaduz
  • Europe/Vatican
  • Europe/Vienna
  • Europe/Warsaw
  • Europe/Zagreb
  • Europe/Zurich
  • MET
  • Poland
Time zones with the GMT +1 offset:
  • BST - British Summer Time
  • CET - Central European Time
  • IST - Irish Standard Time
  • WEST - Western European Summer Time
  • A - Alpha Time Zone
  • CET - Central European Time
  • MEZ - Mitteleuropäische Zeit
  • WAT - West Africa Time
  • WST - Western Sahara Summer Time
  • BMT - Biel Mean Time