For conversion to seconds, the time functions described in this manual by default use 1/1/1970 00:00:00 as the reference date (epoch).
As a result, the time functions ctime, difftime, ftime, gmtime, localtime, mktimeand time supply correct results from 12/13/1901 20:45:52 up to 1/19/2038 03:14:07. Using the link switch TIMESHIFT is not necessary anymore.
If you require the previous behaviour compatible to the specified CRTE versions (reference date 1/1/1950), you have to use the link switch TIME50.
This link switch is necessary if time stamps are to be processed which have been created with 1/1/1950 as the reference date (epoch).
However, the time functions mentioned above don‘t supply correct result anymore for time stamps after 1/19/2038 03:14:07. Especially, a call of the functions time and ftime cause the termination of the program, as the current date is higher than 1/19/2018.
The bind option is contained in the libraries SYSLNK.CRTE.TIME50 and SKULNK.CRTE.TIME50
To use the bind option, enter the following statement when binding:
INCLUDE-MODULE LIB=<library>,ELEMENT=*ALL
Time functions with 64-bit time counter
The ctime64, difftime64, ftime64, gmtime64, localtime64, mktime64 and time64 functions use a 64-bit time counter. In contrast to the corresponding functions with a 32-bit counter (ctime, difftime, ftime, gmtime, localtime, mktime and time) they will therefore supply correct results from 1/1/1900 00:00:0 up to 3/18/4317 02:44:48. In the case of the time functions with a 64-bit time counter, the reference date is always 1/1/1970 00:00:00.