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Includes epoch explanation and conversion syntax in various programming languages. Epoch & Unix Timestamp Conversion Tools. Convert epoch to human-readable date and vice versa.
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Prefer a 12 or 24-hour clock? Go to preferences. Press c to clear all forms. Epoch dates for the start and end of the year/month/day. Convert seconds to days, hours and minutes. What is epoch time? The Unix epoch (or Unix time or POSIX time or Unix timestamp ) is the number of seconds that have elapsed since January 1, 1970 (midnight UTC/GMT), not counting leap seconds (in ISO 8601: 1970-01-01T00:00:00Z). Literally speaking, the epoch is Unix time 0 (midnight 1/1/1970), but 'epoch' is often used as a synonym for Unix time. Some systems store epoch dates as a signed 32-bit integer, which might cause problems on January 19, 2038 (known as the Year 2038 problem or Y2038). The converter on this page converts timestamps in seconds (10-digit), milliseconds (13-digit) and microseconds (16-digit) to readable dates. Human-readable time Seconds 1 hour 3600 seconds 1 day 86400 seconds 1 week 604800 seconds 1 month (30.44 days) 2629743 seconds 1 year (365.24 days) 31556926 seconds. How to get the current epoch time in . PHP time() More PHP Python import time, time.time() Source Ruby Time.now (or Time.new ). To display the epoch: Time.now.to_i Perl time More Perl Java long epoch = System.currentTimeMillis()/1000, Returns epoch in seconds. C# DateTimeOffset.Now.ToUnixTimeSeconds() (.NET Framework 4.6+/.NET Core), older versions: var epoch = (DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc)).TotalSeconds, Objective-C [[NSDate date] timeIntervalSince1970], (returns double) or NSString *currentTimestamp = [NSString stringWithFormat:@%f", [[NSDate date] timeIntervalSince1970]], C++11 double now = std::chrono::duration_cast (std::chrono::system_clock::now().time_since_epoch()).count(), Lua epoch = os.time([date]) VBScript/ASP See the examples AutoIT _DateDiff('s', "1970/01/01 00:00:00", _NowCalc()) Delphi Epoch := DateTimetoUnix(Now), Tested in Delphi 2010. Dart DateTime.now().microsecondsSinceEpoch R as.numeric(Sys.time()) Erlang/OTP erlang:system_time(seconds). (version 18+), older versions: calendar:datetime_to_gregorian_seconds(calendar:universal_time())-719528*24*3600. MySQL SELECT unix_timestamp(now()) More MySQL examples PostgreSQL SELECT extract(epoch FROM now()), SQLite SELECT strftime('%s', 'now'), Oracle PL/SQL SELECT (CAST(SYS_EXTRACT_UTC(SYSTIMESTAMP) AS DATE) - TO_DATE('01/01/1970','DD/MM/YYYY')) * 24 * 60 * 60 FROM DUAL, SQL Server SELECT DATEDIFF(s, '1970-01-01 00:00:00', GETUTCDATE()) IBM Informix SELECT dbinfo('utc_current') FROM sysmaster:sysdual, JavaScript Math.floor(new Date().getTime()/1000.0) The getTime method returns the time in milliseconds. Visual FoxPro DATETIME() - Warning: time zones not handled correctly Go time.Now().Unix() More Go Adobe ColdFusion Tcl/Tk clock seconds Unix/Linux Shell date +%s Solaris /usr/bin/nawk 'BEGIN ' Solaris doesn't support date +%s , but the default seed value for nawk's random-number generator is the number of seconds since the epoch. PowerShell [int][double]::Parse((Get-Date (get-date).touniversaltime() -UFormat %s)) Other OS's Command line: perl -e "print time" (If Perl is installed on your system) Convert from human-readable date to epoch. PHP strtotime("15 November 2018") (converts most English date texts) or: date_create('11/15/2018')->format('U') (using DateTime class) More PHP Python import calendar, time, calendar.timegm(time.strptime('2000-01-01 12:34:00', '%Y-%m-%d %H:%M:%S')) Ruby Time.local( year , month , day , hour , minute , second , usec ) (or Time.gm for GMT/UTC input). To display add .to_i Perl Use the Perl Epoch routines Java long epoch = new java.text.SimpleDateFormat("MM/dd/yyyy HH:mm:ss").parse("01/01/1970 01:00:00").getTime() / 1000, Timestamp in seconds, remove '/1000' for milliseconds. VBScript/ASP DateDiff("s", "01/01/1970 00:00:00", time field ) More ASP AutoIT _DateDiff('s', "1970/01/01 00:00:00", "YYYY/MM/DD HH:MM:SS") Delphi Epoch := DateTimeToUnix(StrToDateTime(myString)), C Use the C Epoch Converter routines R as.numeric(as.POSIXct("YYYY-MM-dd HH:mm:ss", tz = "GMT", origin="1970-01-01")) The origin parameter is optional Go Example code Rust SystemTime::now().duration_since(SystemTime::UNIX_EPOCH) Adobe ColdFusion int(parseDateTime(datetime).getTime()/1000), MySQL SELECT unix_timestamp( time ) Time format: YYYY-MM-DD HH:MM:SS or YYMMDD or YYYYMMDD More on using Epoch timestamps with MySQL PostgreSQL SELECT extract(epoch FROM date('2000-01-01 12:34')), With timestamp: SELECT EXTRACT(EPOCH FROM TIMESTAMP WITH TIME ZONE '2018-02-16 20:38:40-08'), With interval: SELECT EXTRACT(EPOCH FROM INTERVAL '5 days 3 hours'), SQLite SELECT strftime('%s', timestring ), SQL Server SELECT DATEDIFF(s, '1970-01-01 00:00:00', time field ) JavaScript Use the JavaScript Date object Unix/Linux Shell date +%s -d"Jan 1, 1980 00:00:01" Replace '-d' with '-ud' to input in GMT/UTC time. Convert from epoch to human-readable date. PHP date( output format , epoch ), Output format example: 'r' = RFC 2822 date, more PHP examples Python import time, time.strftime("%a, %d %b %Y %H:%M:%S +0000", time.localtime( epoch )) Replace time.localtime with time.gmtime for GMT time. Or using datetime: import datetime, datetime.datetime.utcfromtimestamp( epoch ).replace(tzinfo=datetime.timezone.utc) Ruby Time.at( epoch ) C# private string epoch2string(int epoch) return new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc).AddSeconds(epoch).ToShortDateString(), > Perl Use the Perl Epoch routines Java String date = new java.text.SimpleDateFormat("MM/dd/yyyy HH:mm:ss").format(new java.util.Date ( epoch *1000)), Epoch in seconds, remove '*1000' for milliseconds. Lua datestring = os.date([format[,epoch]]) VBScript/ASP DateAdd("s", epoch , "01/01/1970 00:00:00") More ASP AutoIT _DateAdd("s", $EpochSeconds , "1970/01/01 00:00:00") Dart DateTime.fromMicrosecondsSinceEpoch(epoch) Delphi myString := DateTimeToStr(UnixToDateTime(Epoch)), Where Epoch is a signed integer. C Use the C Epoch Converter routines Objective-C NSDate * myDate = [NSDate dateWithTimeIntervalSince1970: epoch ], NSLog(@"%@", date), R as.POSIXct(epoch, origin="1970-01-01", tz="GMT") Go Example code Adobe ColdFusion DateAdd("s",epoch,"1/1/1970"), MySQL FROM_UNIXTIME( epoch , optional output format ) Default output format is YYY-MM-DD HH:MM:SS. If you need support for negative timestamps: DATE_FORMAT(DATE_ADD(FROM_UNIXTIME(0), interval -315619200 second),"%Y-%m-%d") (replace -315619200 with epoch) More MySQL PostgreSQL PostgreSQL version 8.1 and higher: SELECT to_timestamp( epoch ), Source Older versions: SELECT TIMESTAMP WITH TIME ZONE 'epoch' + epoch * INTERVAL '1 second', SQLite SELECT datetime( epoch_to_convert , 'unixepoch'), or local timezone: SELECT datetime( epoch_to_convert , 'unixepoch', 'localtime'), Oracle PL/SQL SELECT to_date('01-JAN-1970','dd-mon-yyyy')+(1526357743/60/60/24) from dual Replace 1526357743 with epoch. SQL Server DATEADD(s, epoch , '1970-01-01 00:00:00') IBM Informix SELECT dbinfo('utc_to_datetime', epoch ) FROM sysmaster:sysdual, Microsoft Excel / LibreOffice Calc =(A1 / 86400) + 25569 Format the result cell for date/time, the result will be in GMT time (A1 is the cell with the epoch number). For other time zones: =((A1 +/- time zone adjustment) / 86400) + 25569. Crystal Reports DateAdd("s", -14400, #1/1/1970 00:00:00#) -14400 used for Eastern Standard Time. See Time Zones. JavaScript Use the JavaScript Date object Tcl/Tk clock format 1325376000 Documentation MATLAB datestr(719529+TimeInSeconds/86400,'dd-mmm-yyyy HH:MM:SS') IBM PureData System for Analytics select 996673954::int4::abstime::timestamp, Unix/Linux Shell date -d @1520000000 Replace 1520000000 with your epoch, needs recent version of 'date'. Replace '-d' with '-ud' for GMT/UTC time. Mac OS X date -j -r 1520000000 PowerShell Function get-epochDate ($epochDate) , then use: get-epochDate 1520000000 . Works for Windows PowerShell v1 and v2 Other OS's Command line: perl -e "print scalar(localtime( epoch ))" (If Perl is installed) Replace 'localtime' with 'gmtime' for GMT/UTC time. Thanks to everyone who sent me corrections and updates! Please note: All tools on this page are based on the date & time settings of your computer and use JavaScript to convert times. Some browsers use the current DST (Daylight Saving Time) rules for all dates in history.
