MJD2unix
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Contents: Description, Arguments, Usage, Examples, Related Functions, Source Supported Under Version: > 1.15
Description Convert UTC Modified Julian Date to Unix time
Arguments and Return Values Parameters: Numeric array specifying the UTC Modified Julian Dates to convert to Unix times Return Value: The corresponding set of Unix times (in seconds)
Usage Syntax: MJD2unix(MJD) The Modified Julian Date is the number of days since midnight UTC at the beginning of November 17, 1858 (in the Gregorian calendar). Unix time is the number of seconds since midnight UTC at the beginning of January 1, 1970. Note that since neither of those time scales directly accounts for the addition of leap seconds, they are not truly continuous. The returned values are as accurate as the input. It is advisable to enter inputs in double format to ensure accuracy; see intermediate float bug. When MJD2unix() is entered without any arguments, it prints its description, as shown below.
Examples dv> MJD2unix() Converts input UTC Modified Julian Date to Unix time Modified Julian Date is the number of days since midnight UTC on November 17, 1858 (in the Gregorian calendar). Unix time is the number of seconds since midnight UTC on January 1, 1970. Returns seconds, not milliseconds. Note that Unix time does not account for leap seconds. It is advisable to enter inputs in double format to ensure accuracy. See the DavinciWiki article on the intermediate float bug. S.Marshall 04-11-2009 0 dv> a = MJD(1970, 1, 1, 0, 0, 0) 40587.0000000000 dv> MJD2unix(a) 0.000000000000000 dv> a = MJD(2010, 1, 1, 12, 0, 0) 55197.5000000000 dv> MJD2unix(a) 1262347200.00000 |
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Recent Library Changes Created On: 11-18-2009 |
