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Top Forums Shell Programming and Scripting Convert Epoch Time to Standard Date and Time & Vice Versa Post 302257341 by DrivesMeCrazy on Wednesday 12th of November 2008 01:09:15 AM
Old 11-12-2008
Quote:
Originally Posted by Yogesh Sawant
works for me:
Code:
[yogeshs@helptoldreal-lr yogeshs]$ perl -e 'use Time::Local; print timelocal(0,25,1,11,11,2008), "\n";'
1228938900
[yogeshs@helptoldreal-lr yogeshs]$ perl -e 'print scalar(localtime(1228938900)), "\n"'
Thu Dec 11 01:25:00 2008
[yogeshs@helptoldreal-lr yogeshs]$

can you post a similar example where the epoch value you got is incorrect?
Hi Yogesh,

Thanks for the reply.

I found out that the month parameter for perl timelocal() need to "- 1".
As in Jan to specify "0", Dec to specify 11.
I got the value wrong, thats why epoch is not returning a consistent value.

Code:
bash-3.00# perl -e 'print scalar(localtime(1226426701)), "\n"'
Wed Nov 12 02:05:01 2008
bash-3.00# perl -e 'use Time::Local; print timelocal(1,5,2,12,10,2008), "\n"'
1226426701

Really appreciate your help
 

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GETDATE(1)							   User Commands							GETDATE(1)

NAME
getdate - AME SYNOPSIS
[-dv][-n dec][-f format] [ra dec sys] itype2otype [date and/or time] DESCRIPTION
Convert date and time between various formats [-dv][-n dec][-f format] itype2otype @file itype: nfd=ISOFITS fd=FITS, dt=yyyy.mmdd, hr=hh:mm:ss, deg=dd:mm:ss jd=Julian Date, mjd=Modified Julian Date hjd=Heliocentric Julian Date, mhjd=Modified HJD ep=epoch, epj=Julian epoch, epb=Besselian epoch lt=local time, ut=UT, ts=seconds since 1950-01-01 now=current time, ang=fractional degrees otype: fd=FITS, dt=yyyy.mmdd, jd=Julian Date, mjd=Modified Julian Date hjd=Heliocentric Julian Date, mhjd=Modified HJD hr=hh:mm:ss, deg=dd:mm:ss, ang=fractional degrees ep=epoch, epj=Julian epoch, epb=Besselian epoch ts=seconds since 1950-01-01, tsu=Unix sec, tsi=IRAF sec gst=Greenwich Sidereal Time, lst=Local Sidereal Time @file: First one or two columns are in itype format ra dec sys: Need for Heliocentric conversions -a: Append date to input file, if there is one -d: Print date without time -e: Print output as ET/TDT/TT converting from UT -f: Format for output number (C printf) -h hours: Longitude in hours, west positive -l degrees: Longitude in degrees, west positive -n: Number of decimal places in sec, epoch, JD -t: Print time without date -v: Verbose getdate 3.8.4 June 2012 GETDATE(1)
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