China
CST
GMT/IST
Greenwich Mean Time
GMT +0
IST automatically adjusted to GMT time zone, that is in use

Time Difference

CST (China Standard Time) is 8 hours ahead of Greenwich Mean Time
9:00 pm21:00 in Zhengzhou, China is 1:00 pm13:00 in GMT

Zhengzhou to IST call time
Best time for a conference call or a meeting is between 3pm-6pm in Zhengzhou which corresponds to 8am-11am in IST

9:00 pm21:00 CST (China Standard Time) (Zhengzhou, China). Offset UTC +8:00 hours
1:00 pm13:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours

9:00 pm21:00 Zhengzhou, China / 1:00 pm13:00 GMT

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

Zhengzhou Information

Time Zone

Abbreviation / Name
CST - China Standard Time
UTC / GMT Offset
+8:00 hours during China Standard Time, currently in use.

Zhengzhou Facts

Country
China
Alternative Names
CGO, Cencou, Ceng-cou, Cengcou, Cheng, Cheng-chou, Cheng-chou-shih, Cheng-hsien, Chengchow, Chhiang-chu-su, Chhiáng-chû-sṳ, Chzhehnchzhou, Chzhenchzhou, Cjencjou, Csengcsou, Cwngcouh, Czengczou, Dang-ciu, Dzendzou, Dzengdzou, Dzhundzhou, Dâng-ciŭ, Džendžou, Džengdžou, Genggouo, Trinh Chau, Trịnh Châu, Tsentsoou, Tēⁿ-chiu-chhī, Zengzou, Zhengtsjou, Zhengzhou, Zhengzhou Shi, canaco, cancau, ceing cow, cencavu, jeongjeou si, jhengajho'u, tshnghtshw, zheng zhou, zheng zhou shi, zhngzhw, zhyngzhw, Çengçou, Çjençjou, Čeng-čou, Ĝengĝoŭo, Žengžou, Τσεντσόου, Џенгџоу, Джънджоу, Жөнжоу, Чженчжоу, Чжэнчжоу, Чжэнчжоў, تشنغتشو, جېڭجۇ شەھىرى, ژنگژو, ژینگژو, चंचौ, झेंगझोऊ, ਚੰਙਚੋ, செங்சவு, เจิ้งโจว, ကျင့်ကျိုးမြို့, 郑州, 郑州市, 鄭州, 鄭州市, 정저우 시
Population
4,253,913
Currency
Yuan Renminbi (CNY)
Geographic Coordinates
34° 45' N Latitude / 113° 38' E Longitude
International Dialing Code
+86

Irish Standard Time

Offset: IST is 1 hour ahead Greenwich Mean Time (GMT) and is used in Europe

Countries: It is used in following countries: Ireland

Principal Cities: The largest city in the IST timezone is Dublin from Ireland with population about 1.024 million people. Other major cities in the area are Cork, Dun Laoghaire, Luimneach, Gaillimh

Greenwich Mean Time (GMT) originally referred to the mean solar time at the Royal Observatory in Greenwich, London. It is now often used to refer to Coordinated Universal Time (UTC) when this is viewed as a time zone, and in casual use for the most parts it is the same. In military GMT is known as Zulu time.Greenwich Mean Time was the same as Universal Time (UT), until the introduction of UTC in 1972 a standard astronomical concept used in many technical fields.

IST Time Zone Geo Map
IST timezone map

IST 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 one hour and zero minutes time differences to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Alpha - Military abbreviation for IST
  • A - short form of 'Alpha'
IANA/Olson: Reflects IST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Eire
  • Europe/Dublin
IST Abbreviation: Several time zones share IST abbreviation and it could refer to these time zones
  • India Standard Time - UTC +5:30
  • Irish Standard Time - UTC +1
  • Israel Standard Time - UTC +2
  • Iran Standard Time - UTC +3:30
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