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Re: Time Woes [message #30559 is a reply to message #30471]

Thu, 02 May 2002 06:11

btupper
Messages: 55
Registered: January 2002

Member

On Wed, 1 May 2002 13:41:10 -0600, David Fanning <david@dfanning.com>
wrote:

> I have a time array that purports to be the number of seconds
> from 1 Jan 1980. How in the world do I convert that to something
> I can use with routines I have access to?
>

Howdy,

Do you mean that you want to know a Julian time stamp or Calendar date
for the time array values? I don't have IDL in front of me right now
so I can't check this, and I can't clearly recall the syntax.

(The following supposes the 'seconds' are just the run-of-the-mill
kind of seconds...)

; start time in seconds
t0 = JulDay( 0,1 1980, 0, 0, 0)
; add the elapsed time since t0
t[i] = t0 + timeArray[i]
;convert to calendar values
CalDat, t[i], month, day, year, hour, min, sec

I have a sneaky feeling that your problem is more complicated than
this solution will bridge. The only thing I do well with time (in
IDL) is squander it, but I hope it helps anyway.

Ben

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[Message index]

		Time Woes By: David Fanning on Wed, 01 May 2002 12:41
		Re: Time Woes By: Craig Markwardt on Thu, 02 May 2002 15:26
		Re: Time Woes By: thompson on Thu, 02 May 2002 14:51
		Re: Time Woes By: btupper on Thu, 09 May 2002 07:21
		CDF_EPOCH (was Re: Time Woes) By: Brian Jackel on Thu, 02 May 2002 12:05
		Re: Time Woes By: Struan Gray on Thu, 02 May 2002 08:34
		Re: Time Woes By: David Fanning on Thu, 02 May 2002 06:38
		Re: Time Woes By: btupper on Thu, 02 May 2002 06:11
		Re: Time Woes By: Ken Mankoff on Thu, 02 May 2002 06:07
		Re: Time Woes By: Paul Van Delst[1] on Wed, 01 May 2002 14:24
		Re: Time Woes By: David Fanning on Wed, 01 May 2002 14:00
		Re: Time Woes By: Robert Stockwell on Mon, 06 May 2002 06:14
		Re: Time Woes By: Ken Mankoff on Wed, 01 May 2002 13:10

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