Unix timestamp

1231891200

Wed 14 Jan 2009 12:00:00 AM UTC

Coordinated Universal Time

Wed Jan 14 00:00:00 2009 UTC

In your local timezone

2009-01-14T00:00:00+00:00

ISO 8601

Wed, 14 Jan 2009 00:00:00 +0000

RFC 2822

2454846

Julian Date

18 Tevet 5769

Hebrew Date

041

Swatch Internet Time

13

Day of the year

January

Month

31

Days in month

03

Week

Wednesday

Day of the week

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1231891200

Converting Unix timestamp 1231891200 using our Time Converter gives us the following information:

1231891200 is representing the 13 day of the year 2009 in the Gregorian calendar, having 365 days. There are 352 days left of the year and this particular timestamp falls on a Wednesday, January 14 of week 03 at 00:00 UTC in the monrning meaning that about 0% of the day has passed. At this specifc time, the moon was in its Waning Gibbous phase, about 232,020 miles (or 373,399 km) from Earth.

On this day, many notable and historically important events have taken place. But to only mention a few, in year 1639, the "Fundamental Orders", the first written Constitution that created a government, is adopted in Connecticut. And later in 1761 the Third Battle of Panipat is fought in India between the Afghans under Ahmad Shah Durrani and the Marathas. More recently, in 2024 queen Margrethe II abdicates as Queen of Denmark and is succeeded by her son, Frederik X.

We've also, tragically, seen a few famous deaths throughout history on this day. One notable mention is in 769 when Cui Huan, chancellor of the Tang Dynasty passed away and in 927 when Wang Yanhan, king of Min (Ten Kingdoms) left us. And more recently, Tony Slattery, British actor, comedian and television personality (born 1959) who died in in 2025.

January 14, or 1231891200, is also a day that we should celebrate. This date marks the birth of many influential people throughout history, including Mark Antony, Roman general and politician (died 30 BCE) who was born in 83 BC, and later in 1131 - Valdemar I of Denmark (died 1182). More recently, JJ Peterka, German ice hockey player who was born in 2002.

Conversion help

For your conveniance, we have listed the conversion syntaxes for 1231891200 timestamp to serveral of the most popular programming lanugages below.

PHP
date('Y-m-d H:i:s', 1231891200);
MySQL
select from_unixtime(1231891200);
JavaScript
new Date(1231891200*1000).toString();
C++
time_t epch = 1231891200;
printf("%i -> %s", epch, asctime(gmtime(&epch))); (time.h);
C#
String.Format("{0:d/M/yyyy HH:mm:ss}", new System.DateTime(1970, 1, 1, 0, 0, 0, 0).AddSeconds(1231891200));
Java
new SimpleDateFormat("MM/dd/yyyy HH:mm:ss").format(new Date(1231891200 * 1000L))
Ruby
require 'date'
DateTime.strptime("1231891200",'%s')
Binary
10010010 11011010 01010110 0000000
Hexadecimal
496d2b00

A few related timestamps to 1231891200 are:

Start of year
1230768000
End of Year
1262303999
Start of month
1230768000
End of month
1233446399
Start of day
1231891200
End fo day
1231977599
Start of hour
1231891200
End fo hour
1231894799
Start of min
1231891200
End fo min
1231891259