DST is such a pain when it comes to programming. I wish they just get rid of it. It’d be helpful; however, the programmers will still have to deal with the timezones. I was answering questions related to the timers on this website and I keep getting a lot of questions on DST and the timezones. Even though it seems easy, this topic is very confusing. There are lot many sources on the Internet and reading them confuses the hell out of me.
Time Difference. Israel Daylight Time is 3 hours ahead of Universal Time Coordinated 8:30 pm 20:30 in IDT is 5:30 pm 17:30 in UTC. IST to UTC call time Best time for a conference call or a meeting is between 10am-6pm in IST which corresponds to 8am-4pm in UTC. I am new to Groovy script and I am looking for a groovy script in soapUI, where I can convert my current time (IST) to UTC before passing it to API. I tried below code: import java.util.; def d. Time zone difference: India Time (IST) to Pacific Time (PDT/PST) Time now in IST and Pacific. Conversion tools and tables. All times shown observe local daylight saving time (DST) rules. I don't think it should matter here, if your using standard offset values. Localtime = utctime + utcoffset AND utctime = localtime - utcoffset. – monkut Feb 10 '11 at 3:18 5 It only works with current time because past and future timestamps may have different UTC offset due to DST. Click on the IST field (left) and select the time you want to convert to UTC. The time in UTC (right) will be updated automatically. You can also change the date by clicking on the date field. What time is now in UTC zone?
Let the date in question be in Indian Standard Time (IST)
January 02, 2012 22:00:00 GMT+0530
How to convert the date into a local time(CST)?
How to convert a date to UTC?
This is where many of the online sources go wrong. The simple answer is to convert the date into milliseconds since Epoch and add the timezone offset and convert it back to a date object. Simple? No, this is partially correct. When the calculated milliseconds are converted back to a date, you get a local date.
Notice the GMT-0600 (CST) part at the end. That means the resulting date is not GMT, it is CST. If you convert this date to GMT it will read -
Mon Jan 02 2012 22:30:00 GMT but we want it to be
Mon Jan 02 2012 16:30:00 GMT
There is also another incorrect way mentioned all over the Internet -
The result will be no different than the one that you see above.
How to convert the local date to UTC date?
How to get the local date from the UTC date?
That is a long string to store, is there any alternative to store the UTC time?
Just store the number of milliseconds since Epoch converted to UTC by adding the timezone offset.
How to convert the milliseconds in UTC to local date?
Subtract the timezone offset. Xampp html5.
The code from above is used in this demo page. Let me know if you have any questions or comments.
Update: moved the code to github
India Standard Time is 3 hours and 30 minutes ahead of Central European Summer Time and 5 hours and 30 minutes ahead of Universal Time Coordinated
4:00 pm16:00 in IST is 12:30 pm12:30 in CEST and is 10:30 am10:30 in UTC
IST to CET call time
Best time for a conference call or a meeting is between 12:30pm-6pm in IST which corresponds to 8am-1:30pm in CET
IST to UTC call time
Best time for a conference call or a meeting is between 1:30pm-6pm in IST which corresponds to 8am-12:30pm in UTC
4:00 pm16:00 India Standard Time (IST). Offset UTC +5:30 hours
12:30 pm12:30 Central European Summer Time (CEST). Offset UTC +2:00 hours
10:30 am10:30 Universal Time Coordinated (UTC). Offset UTC 0:00 hours
4:00 pm16:00 IST / 12:30 pm12:30 CEST / 10:30 am10:30 UTC
|12am (midnight)||8:30 pm||6:30 pm|
|1am||9:30 pm||7:30 pm|
|2am||10:30 pm||8:30 pm|
|3am||11:30 pm||9:30 pm|
|4am||12:30 am||10:30 pm|
|5am||1:30 am||11:30 pm|
|6am||2:30 am||12:30 am|
|7am||3:30 am||1:30 am|
|8am||4:30 am||2:30 am|
|9am||5:30 am||3:30 am|
|10am||6:30 am||4:30 am|
|11am||7:30 am||5:30 am|
|12pm (noon)||8:30 am||6:30 am|
|1pm||9:30 am||7:30 am|
|2pm||10:30 am||8:30 am|
|3pm||11:30 am||9:30 am|
|4pm||12:30 pm||10:30 am|
|5pm||1:30 pm||11:30 am|
|6pm||2:30 pm||12:30 pm|
|7pm||3:30 pm||1:30 pm|
|8pm||4:30 pm||2:30 pm|
|9pm||5:30 pm||3:30 pm|
|10pm||6:30 pm||4:30 pm|
|11pm||7:30 pm||5:30 pm|
India Standard Time
Offset: IST is 5 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Asia
Countries: It is used in following countries: India
Principal Cities: The largest city in the IST timezone is Mumbai from India with population about 12.692 million people. Other major cities in the area are Delhi, Bangalore, Kolkata, Chennai
Daylight Saving: India Standard Time (IST) is not adjusted for daylight saving therefore IST remains the same through out the year. This means, unlike some time zones where the clock is set forward by one hour every summer and backward by one hour during winter to adjust for daylight saving, India Standard Time remains the same
IST representations, usage and related time zonesW3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
- +0530 - basic
- +05:30 - extended
- +0530 - sign character (+) followed by a four digit time providing hours (05) and minutes (30) of the offset. Indicates five hour and thirty minutes time differences to the east of the zero meridian.
- India Standard Time - UTC +5:30
- Irish Standard Time - UTC +1
- Israel Standard Time - UTC +2
Central European Time
Offset: CET is 1 hour ahead Greenwich Mean Time (GMT) and is used in Europe
Countries: It is used in following countries: Andorra, Albania, Austria, Bosnia & Herzegovina, Belgium, Switzerland, Czech Republic, Germany, Denmark, Algeria, Spain, France, Gibraltar, Croatia, Hungary, Italy, Liechtenstein, Luxembourg, Monaco, Montenegro, North Macedonia, Malta, Netherlands, Norway, Poland, Serbia, Sweden, Slovenia, Svalbard & Jan Mayen, Slovakia, San Marino, Tunisia, Vatican City
Principal Cities: The largest city in the CET timezone is Berlin from Germany with population about 3.426 million people. Other major cities in the area are Madrid, Rome, Paris, Algiers
Daylight Saving: This is a standard timezone, however during summer some places adjust time for one hour forward for daylight saving and observe Central European Summer Time (CEST).
End: CET ended and clocks were set one hour forward on Sunday, 28 March 2021, at 2:00 (2:00 am) local time.
Start: CET starts and clocks are set one hour back on Sunday, 31 October 2021, at 3:00 (3:00 am) local time.
German: MEZ - Mitteleuropäische Zeit
CET representations, usage and related time zonesW3C/ISO-8601:
Current Date Time UtcInternational standard covering representation and exchange of dates and time-related data
- +01 - basic short
- +0100 - basic
- +01:00 - extended
Current Utc Time 12
- +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.
- Alpha - Military abbreviation for CET
- A - short form of 'Alpha'
Utc Current Time To Ist
- 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 - MitteleuropÃ¤ische Zeit
- WAT - West Africa Time
- WST - Western Sahara Summer Time
- BMT - Biel Mean Time
- +01 -
Universal Time Coordinated
Offset: UTC is 0 hours ahead Greenwich Mean Time (GMT) and is used in Universal
Coordinated Universal Time (UTC) is the world time standard that regulates clocks and time. It is successor to Greenwich Mean Time (GMT). For casual use, UTC is the same as GMT, but is used by the scientific community.
UTC is the time standard commonly used across the world since 1972. It is used in many technical fields, like aviation industry and meteorologists, also used to synchronize time across internet networks.
UTC representations, usage and related time zonesW3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
- Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
- +00 - basic short
- +0000 - basic
- +00:00 - extended
- +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates zero hour and zero minutes time differences of the zero meridian.
- Zulu - Military abbreviation for UTC
- Z - short form of 'Zulu'
Current Utc Time To Ist Time
Ist To Utc Current Time DifferenceTime zones with the GMT +0 offset:
Current Utc Time In Seconds
- EGST - Eastern Greenland Summer Time
- GMT - Greenwich Mean Time
- WET - Western European Time
- AZOST - Azores Summer Time
- UTC - Universal Time Coordinated
- WT - Western Sahara Standard Time
- Z - Zulu Time Zone
- GMT - GMT
- +00 -