India Standard Time
IST
Asia/Kolkata
Kolkata, India
UTC+5:30
14.9M people
Current time and detailed information for India Standard Time (Asia/Kolkata) in Kolkata
Current Time
13:54:11
Sunday, October 12, 2025 at 13:54:11
Basic Information
IANA Identifier
Asia/Kolkata
Region
Asia
Country
India (IN)
Primary City
Kolkata
Coordinates
22.5726°N, 88.3639°E
Time Information
UTC Offset
UTC+5:30
Abbreviation
IST
Population
14,900,000
Time Difference with Major Cities
UTC
5.5h ahead
New York
10.5h ahead
London
5.5h ahead
Paris
4.5h ahead
Tokyo
3.5h behind
Sydney
4.5h behind
Time Formats
ISO 8601 Format
2025-10-12T08:24:11.275Z
Unix Timestamp
1760257451
RFC 2822 Format
Sun, 12 Oct 2025 08:24:11 GMT
Local Format
Sunday, October 12, 2025 at 13:54:11
Related Timezones
India Standard Time (Asia/Kolkata) Time - Frequently Asked Questions
About India Standard Time (Asia/Kolkata)
India Standard Time (Asia/Kolkata) is the standard time used in Kolkata, India and surrounding regions. The timezone has a UTC offset of UTC+5:30 and is widely used for scheduling and time coordination in this geographical area. This timezone serves millions of people and is an important reference for business, travel, and international communications.