|Time zone abbreviation:||IST|
|Time zone name:||Indian Standard Time|
Current Local Time in India
“IST” Indian Standard Time: UTC+5:30 (DST not observed)
IST is also known as the “Indian Standard Timezone” that is observed throughout India. The Indian timezone is 5 hours 30 minutes ahead of the Coordinated Universal Timezone (UTC) or Greenwich Mean Time (GMT). As far as other seasonal adjustments are concerned, India does not observe Daylight Saving Time (DST).
However, it was used for quite some period of time during the second World War from 1942 to 1945, the China-India war that happened in 1962 also the Indo-Pakistani War that occurred in 1962 and 1971. The purpose was to reduce energy consumption in the civil areas of the country.
What is E*?
E*, also known as echo star, is a designation of IST used in the military and aviation time.
Establishment of IST as a standard
IST was established as the official time throughout India after its independence in 1947 by the Union Government. In contrast, at that time, Kolkatta and Mumbai observed their local times called as Calcutta time and Bombay time till 1948 and 1955, respectively.
The Central Observatory
Initially, the central observatory was located in Chennai, but then it was moved from this location to the Shankargarh Fort in Prayagraj district. This was done so that the IST would be as close as possible to the UTC+5:30.
Generation of official time signals
In New Delhi, there is a National Physical Laboratory that has a department for time and frequency standards, which generates time signals for both commercial and official use. The generated signals are based on the atomic clocks, which are well synchronized with the worldwide system of clocks, including the coordinated universal time (UTC) and Greenwich Mean Time (GMT).
Communication of time across India
In order to communicate the Indian standard time across the country, the exact time is broadcast over the "All India Radio" along with Doordarshan Television Network.
There are some telecommunication companies that are responsible for conveying precise time to the people through their time servers. Another very popular and used means of obtaining accurate time in India is through Global Positioning System (GPS).
Older time zones used in India
There are several time zones that were used at some significant places in India but not anymore. These older timezones were:
- Bombay Time: This timezone is 4 hours and 51 minutes ahead of Coordinated Universal Time (UTC+04:51)
- Madras Time: This timezone is 5 hours and 21 minutes ahead of the Coordinated Universal Time (UTC+5:21).
- Calcutta Time: This timezone is 5 hours and 53 minutes ahead of the Coordinated Universal Time (UTC+5:53).
- Port Blair Meantime: This timezone is 6 hours and 10 minutes ahead of the Coordinated Universal Time (UTC+6:10).
Frequently Asked Questions
How many time zones are observed in India?
In India, only one timezone is observed across the whole country and its territories, known as the Indian standard time (IST). Indian standard time is approximately five and a half hours ahead of coordinated universal time (UTC).
What is meant by Indian Standard Time, and why do we need it?
In India, there exists a time difference or a time lag of almost 2 hours between the two main cities, Gujarat and Arunachal Pradesh. To avoid this time discrepancy, Indian standard time is used all across the country.
What is the location of the standard meridian in India?
In India, the standard meridian passes through the west of the town of Mirzapur in the state of Uttar Pradesh and is calculated based on 82.5 degrees E longitude.
Is India in a Pacific time zone?
Pacific Standard Time (PST) is 8 hours behind the coordinated universal time (UTC-8:00) whereas Indian Standard Time is five and a half hours ahead of the Coordinated Universal Time (UTC+5:30). So the accumulated time difference between IST and PST is 14:30 hours.
If you want to know the local time of any other country in the World, then click here and find out the local time of the country of your choice.
Currently, we have around 1976 calculators, conversion tables and usefull online tools and software features for students, teaching and teachers, designers and simply for everyone.
You can find at this page financial calculators, mortgage calculators, calculators for loans, calculators for auto loan and lease calculators, interest calculators, payment calculators, retirement calculators, amortization calculators, investment calculators, inflation calculators, finance calculators, income tax calculators, compound interest calculators, salary calculator, interest rate calculator, sales tax calculator, fitness & health calculators, bmi calculator, calorie calculators, body fat calculator, bmr calculator, ideal weight calculator, pace calculator, pregnancy calculator, pregnancy conception calculator, due date calculator, math calculators, scientific calculator, fraction calculator, percentage calculators, random number generator, triangle calculator, standard deviation calculator, other calculators, age calculator, date calculator, time calculator, hours calculator, gpa calculator, grade calculator, concrete calculator, subnet calculator, password generator conversion calculator and many other tools and for text editing and formating, downloading videos from Facebok (we built one of the most famous Facebook video downloader online tools). We also provide you online downloanders for YouTube, Linkedin, Instagram, Twitter, Snapchat, TikTok and other social media sites (please note we does not host any videos on its servers. All videos that you download are downloaded from Facebook's, YouTube's, Linkedin's, Instagram's, Twitter's, Snapchat's, TikTok's CDNs. We also specialise on keyboard shortcuts, ALT codes for Mac, Windows and Linux and other usefull hints and tools (how to write emoji online etc.)
There are many very usefull online free tools and we would be happy if you share our page to others or send us any suggestions for other tools which will come on your mind. Also in case you find any of our tools that it does not work properly or need a better translation - please let us know. Our tools will make your life easier or simply help you to do your work or duties faster and in more effective way.
These below are the most commonly used by many users all over the world.
- Free online calculators and tools
- Time zones/Clocks/Dates calculators
- Free online units conversion tools
- Free online web design tools
- Free online electricity & electronics tools
- Online Tools
- Text Tools
- PDF Tools
- Time zones
- Online clocks/stopwatches/timers
- Time/calendars/date calculators
- Bangkok Current Time
- British summer time now
- California time now
- Central time now
- Chicago time now
- China time now
- Current time
- Current Time in Alaska
- Current Time in Beijing China
- Eastern daylight time now
- Eastern time now
- Greenwich Mean Time Now
- Hawaii time now
- Hong Kong time now
- Houston time now
- India time now
- IST time now
- Japan time now
- Los Angeles time now
- Mountain time now
- Mumbai time now
- Nepal time now
- New Delhi time now
- New York time now
- Pacific Daylight time now
- Pacific time now
- Pakistan time now
- Philippines/Manila time now
- Phoenix time now
- Seoul time now
- Singapore time now
- South Korea time now
- Taiwan time now
- Thailand time now
- Tokyo time now
- United Kingdom time now
- US time now
- UTC time now
And we are still developing more. Our goal is to become the one-stop, go-to site for people who need to make quick calculations or who need to find quick answer for basic conversions.
Additionally, we believe the internet should be a source of free information. Therefore, all of our tools and services are completely free, with no registration required. We coded and developed each calculator individually and put each one through strict, comprehensive testing. However, please inform us if you notice even the slightest error – your input is extremely valuable to us. While most calculators on Justfreetools.com are designed to be universally applicable for worldwide usage, some are for specific countries only.