What is forumual to convert a date (example: 8/6/09) to Unix Time Stamp?
A Unix timestamp is the number of seconds since 1 Jan 1970 00:00:00 UTC
So to convert any particular date to Unix, you could use:
A1: date to be converted (UTC)
=(A1-DATE(1970,1,1))*86400
Format as General.
Of course, if your date input is in local time, and not UTC, you'd have to
add/subtract the difference from UTC to adjust it. So if local time is UTC - 4
hours, then:
=(A1+4/24-DATE(1970,1,1))*86400
--ron