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FORMALITY World Time API

Worldwide time as JSON & TXT

Timezone
Asia/Calcutta
UTC +05:30 IST DST off
03:46:05
Monday, August 24, 2026 at 3:46:05 AM
Wk 35
Day 236/365
Unix 1787523365
since 00:00 03:46:05 until 24:00 20:13:55

Current time in Asia/Calcutta

The details for Asia/Calcutta are as follows. Also available via the API in JSON or plain text.

Local Time

Current Local Date/Time (ISO8601)
RFC 3339
2026-08-24T03:46:05+05:30
RFC 2822
Mon, 24 Aug 2026 03:46:05 +0530
Ordinal Day of the Week
1
Ordinal Day of the Year
236
Ordinal Week Number
35
ISO week date
2026-W35-1
Quarter
3
Epoch (milliseconds)
1787523365195

Timezone Details

Timezone
Asia/Calcutta
Timezone Abbreviation
IST
ISO-3166-2
IN
Country Name
India
Other time zones using the abbreviation IST
Asia/Kolkata, Eire and Europe/Dublin

UTC

Current UTC Date/Time
Local Time's UTC offset
+05:30
Display UTC offset
UTC+05:30
Local Time's UTC offset, in seconds
19800
Unixtime
1787523365

Daylight Saving Time (DST)

This time zone does not observe daylight saving time.
Current status
Standard Time (winter)
Last change
—
Next change
—
Current offset
UTC+05:30

Calendar and time metadata

Leap year
false
Next leap year
2028
Days in year
365
{
    "abbreviation": "IST",
    "datetime": "2026-08-24T03:46:05+0530",
    "day_of_week": 1,
    "day_of_year": 236,
    "week_number": 35,
    "iso_week_date": "2026-W35-1",
    "quarter": 3,
    "epoch_ms": 1787523365195,
    "has_dst": false,
    "is_dst": false,
    "dst_last": null,
    "dst_last_local": null,
    "dst_last_utc": null,
    "dst_next": null,
    "dst_next_local": null,
    "dst_next_utc": null,
    "dst_offset": 19800,
    "dst_from": null,
    "dst_until": null,
    "raw_offset": 19800,
    "timezone": "Asia\/Calcutta",
    "unixtime": 1787523365,
    "utc_datetime": "2026-08-23T22:16:05+0000",
    "utc_offset": "+05:30",
    "display_utc_offset": "UTC+05:30",
    "rfc3339": "2026-08-24T03:46:05+05:30",
    "rfc2822": "Mon, 24 Aug 2026 03:46:05 +0530",
    "is_leap_year": false,
    "next_leap_year": 2028,
    "next_leap_year_including_this_year": 2028,
    "days_in_year": 365
}
Open in new tab 
abbreviation: 'IST'
datetime: '2026-08-24T03:46:05+0530'
day_of_week: 1
day_of_year: 236
week_number: 35
iso_week_date: '2026-W35-1'
quarter: 3
epoch_ms: 1787523365195
has_dst: false
is_dst: false
dst_last: NULL
dst_last_local: NULL
dst_last_utc: NULL
dst_next: NULL
dst_next_local: NULL
dst_next_utc: NULL
dst_offset: 19800
dst_from: NULL
dst_until: NULL
raw_offset: 19800
timezone: 'Asia/Calcutta'
unixtime: 1787523365
utc_datetime: '2026-08-23T22:16:05+0000'
utc_offset: '+05:30'
display_utc_offset: 'UTC+05:30'
rfc3339: '2026-08-24T03:46:05+05:30'
rfc2822: 'Mon, 24 Aug 2026 03:46:05 +0530'
is_leap_year: false
next_leap_year: 2028
next_leap_year_including_this_year: 2028
days_in_year: 365
Open in new tab