Unix (s):1782526546
Unix (ms):1782526546913
ISO 8601:2026-06-27T02:15:46.913Z
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Unix Timestamp Converter

Paste anything
✓ detected: unix timestamp (seconds)

Standard formats

unix timestamp (seconds)
1622505600
unix timestamp (milliseconds)
1622505600000
iso 8601 (utc)
2021-06-01T00:00:00.000Z
iso 8601 (local, no Z)
2021-06-01T00:00:00
rfc 2822 (email/http)
Tue, 01 Jun 2021 00:00:00 +0000
human readable
Tuesday, 1 June 2021, 00:00:00 UTC

Timezones

UTC
01 Jun 2021, 00:00:00
UTC
01 Jun 2021, 00:00:00
—

Platform-specific formats

windows filetime
132669792000000000
apple cocoa time
644198400
excel serial date
44348.00000
ntp timestamp
3831494400
gps timestamp
Week 2160, ToW 172800s
.net datetime ticks
637581024000000000
webkit timestamp
13266979200000000
tai timestamp
1622505637
(UTC +37s, as of 2017)
julian date
2459366.50000
modified julian date (mjd)
59366.00000
lilian date
160206
unix day
18779

ABOUT THIS TIMESTAMP

Unix timestamp 1622505600 represents Tuesday, 1 June 2021 at 00:00:00 UTC. In milliseconds it is 1622505600000. This moment falls on day 152 of 2021, in week 22. The ISO 8601 representation is 2021-06-01T00:00:00.000Z. The Windows FILETIME equivalent is 132669792000000000. The Apple Cocoa timestamp is 644198400. The Excel serial date is 44348.00000. The NTP timestamp is 3831494400. The Modified Julian Date is 59366.00000. The Unix Day number is 18779.

DAY OF WEEK
Tuesday
DAY OF YEAR
152 of 365
WEEK NUMBER
Week 22
UNIX DAY
18779
LEAP YEAR
No
DAYS FROM TODAY
1852 days ago
UTC OFFSET FROM NOW
-1852 days

Specialist tools

ABOUT TIMESTAMP CONVERSION

What is a Unix timestamp?

A Unix timestamp is the number of seconds elapsed since 1 January 1970 00:00:00 UTC -- a moment known as the Unix epoch. It is the most universal way computers store and transmit time because it is a timezone-agnostic integer that requires no calendar logic to compare or sort. Most programming languages, databases, and APIs use Unix timestamps as their internal time representation.

Why are there so many timestamp formats?

Different systems chose different starting points and different units. Windows measures time in 100-nanosecond intervals since 1 January 1601. Apple's frameworks count seconds since 1 January 2001. GPS counts weeks and seconds since 6 January 1980. Excel counts days since 30 December 1899, with an intentional bug that treats 1900 as a leap year for Lotus 1-2-3 compatibility. Converting between these formats requires knowing the offset between each epoch and the Unix epoch, then accounting for differences in unit scale.

What can unixtime.wtf convert?

Paste any timestamp and get instant conversion to 17 formats: Unix seconds, Unix milliseconds, ISO 8601, RFC 2822, human readable, Windows FILETIME, Apple Cocoa time, Excel serial date, NTP timestamp, GPS timestamp, .NET DateTime ticks, WebKit timestamp, TAI, Julian Day Number, Modified Julian Date, Lilian Date, and Unix Day. The specialist tools handle JWT token decoding, cron expression parsing, relative time expressions, and batch log normalisation. All conversions happen client-side -- nothing is sent to a server.