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FORMALITY World Time API

Worldwide time as JSON & TXT

Timezone
US/Central
UTC -06:00 CST DST off
15:59:44
Tuesday, December 30, 2025 at 3:59:44 PM
Wk 1
Day 364/365
Unix 1767131984
since 00:00 15:59:44 until 24:00 08:00:16

Current time in US/Central

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

Local Time

Current Local Date/Time (ISO8601)
RFC 3339
2025-12-30T15:59:44-06:00
RFC 2822
Tue, 30 Dec 2025 15:59:44 -0600
Ordinal Day of the Week
2
Ordinal Day of the Year
364
Ordinal Week Number
1
ISO week date
2026-W01-2
Quarter
4
Epoch (milliseconds)
1767131984672

Timezone Details

Timezone
US/Central
Timezone Abbreviation
CST
Other time zones using the abbreviation CST
America/Bahia Banderas, America/Belize, America/Chicago, America/Chihuahua, America/Costa Rica, America/El Salvador, America/Guatemala, America/Havana, America/Indiana/Knox, America/Indiana/Tell City, America/Knox IN, America/Managua, America/Matamoros, America/Menominee, America/Merida, America/Mexico City, America/Monterrey, America/North Dakota/Beulah, America/North Dakota/Center, America/North Dakota/New Salem, America/Ojinaga, America/Rainy River, America/Rankin Inlet, America/Regina, America/Resolute, America/Swift Current, America/Tegucigalpa, America/Winnipeg, Asia/Chongqing, Asia/Chungking, Asia/Harbin, Asia/Macao, Asia/Macau, Asia/Shanghai, Asia/Taipei, CST6CDT, Canada/Central, Canada/Saskatchewan, Cuba, Mexico/General, PRC, ROC and US/Indiana-Starke

UTC

Current UTC Date/Time
Local Time's UTC offset
-06:00
Display UTC offset
UTC-06:00
Local Time's UTC offset, in seconds
-21600
Unixtime
1767131984

Daylight Saving Time (DST)

This time zone observes daylight saving time.
Current status
Standard Time (winter)
Last change
2025-11-02 01:00:00 (Offset -18000 → -21600)
Next change
2026-03-08 03:00:00 (Offset -21600 → -18000)
Current offset
UTC-06:00

Calendar and time metadata

Leap year
false
Next leap year
2028
Days in year
365
{
    "abbreviation": "CST",
    "datetime": "2025-12-30T15:59:44-0600",
    "day_of_week": 2,
    "day_of_year": 364,
    "week_number": 1,
    "iso_week_date": "2026-W01-2",
    "quarter": 4,
    "epoch_ms": 1767131984672,
    "has_dst": true,
    "is_dst": false,
    "dst_last": "2025-11-02 01:00:00",
    "dst_last_local": "2025-11-02T01:00:00-06:00",
    "dst_last_utc": "2025-11-02T07:00:00Z",
    "dst_next": "2026-03-08 03:00:00",
    "dst_next_local": "2026-03-08T03:00:00-05:00",
    "dst_next_utc": "2026-03-08T08:00:00Z",
    "dst_offset": -21600,
    "dst_from": "2026-03-08T08:00:00.000000+00:00",
    "dst_until": null,
    "raw_offset": -21600,
    "timezone": "US\/Central",
    "unixtime": 1767131984,
    "utc_datetime": "2025-12-30T21:59:44+0000",
    "utc_offset": "-06:00",
    "display_utc_offset": "UTC-06:00",
    "rfc3339": "2025-12-30T15:59:44-06:00",
    "rfc2822": "Tue, 30 Dec 2025 15:59:44 -0600",
    "is_leap_year": false,
    "next_leap_year": 2028,
    "next_leap_year_including_this_year": 2028,
    "days_in_year": 365
}
Open in new tab 
abbreviation: 'CST'
datetime: '2025-12-30T15:59:44-0600'
day_of_week: 2
day_of_year: 364
week_number: 1
iso_week_date: '2026-W01-2'
quarter: 4
epoch_ms: 1767131984672
has_dst: true
is_dst: false
dst_last: '2025-11-02 01:00:00'
dst_last_local: '2025-11-02T01:00:00-06:00'
dst_last_utc: '2025-11-02T07:00:00Z'
dst_next: '2026-03-08 03:00:00'
dst_next_local: '2026-03-08T03:00:00-05:00'
dst_next_utc: '2026-03-08T08:00:00Z'
dst_offset: -21600
dst_from: '2026-03-08T08:00:00.000000+00:00'
dst_until: NULL
raw_offset: -21600
timezone: 'US/Central'
unixtime: 1767131984
utc_datetime: '2025-12-30T21:59:44+0000'
utc_offset: '-06:00'
display_utc_offset: 'UTC-06:00'
rfc3339: '2025-12-30T15:59:44-06:00'
rfc2822: 'Tue, 30 Dec 2025 15:59:44 -0600'
is_leap_year: false
next_leap_year: 2028
next_leap_year_including_this_year: 2028
days_in_year: 365
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