Routines (alphabetical) > Routines: C > CDF Routines > CDF_PARSE_EPOCH

CDF_PARSE_EPOCH

The CDF_PARSE_EPOCH function parses a properly-formatted input string into a double-precision value properly formatted for use as a CDF_EPOCH variable.

Note: CDF_EPOCH variables may be unparsed into a variety of formats using the CDF_ENCODE_EPOCH function.

Syntax

Result = CDF_PARSE_EPOCH(Epoch_string)

Return Value

Returns the double-precision value of the input string properly formatted for use as a CDF_EPOCH variable.

Arguments

Epoch_string

A formatted string that will be parsed into a double precision value suitable to be used as a CDF_EPOCH value. The format of the date string is:

DD-Mon-YYYY hh:mm:ss.ccc

where:

Date Element

Represents

DD

the day of the month (1-31)

Mon

the abbreviated month name: (Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, or Dec)

YYYY

the year (A.D.)

hh

the hour (0-23)

mm

the minute (0-59)

ss

the second (0-59)

ccc

the millisecond (0-999)

For more information about CDF_EPOCH values, see “Data Types” in the CDF User’s Guide.

Keywords

None

Examples

test_string = '04-Dec-1995 20:19:18.176'

test_epoch = CDF_PARSE_EPOCH(test_string)

HELP, test_string, test_epoch

PRINT, CDF_ENCODE_EPOCH(test_epoch, EPOCH=0)

IDL Output

TEST_STRING STRING = '04-Dec-1995 20:19:18.176'

TEST_EPOCH DOUBLE = 6.2985328e+13

 

04-Dec-1995 20:19:18.176

Version History

 

4.0.1b

Introduced

See Also

CDF_ENCODE_EPOCH, CDF_EPOCH