The tryParse operator converts a string representation of a date and time to its DateTime equivalent. Null is returned if the string is not a valid date and or time.

The string to be parsed can be in any of the following forms,

• A string with a date and a time component.

OCL	Result
'08/18/2018 07:22:16'.tryParse('')	8/18/2018 07:22:16 AM

• A string with a date but no time component. If the time component is absent, the method assumes 12:00 midnight. If the date component has a two-digit year, it is converted to a year based on the Calendar.

OCL	Result
'08/18/2018'.tryParse('')	8/18/2018 12:00:00 AM

• A string with a date component that includes only the month and the year but no day component. The method assumes the first day of the month.

OCL	Result
'8/2018'.tryParse('')	8/1/2018 12:00:00 AM

• A string with a date component that includes only the month and the day but no year component. The method assumes the current year.

OCL	Result
'8/18'.tryParse('')	8/18/2024 12:00:00 AM

* A string with a time but no date component. The method assumes the current date.

OCL	Result
'07:22:16'.tryParse('')	8/18/2024 7:22:16 AM

*A string with a time component that includes only the hour and an AM/PM designator, with no date component. The method assumes the current date and a time with no minutes and no seconds.

OCL	Result
'7 PM'.tryParse('')	8/18/2024 7:00:00 PM

* A string that includes time zone information and conforms to ISO 8601. In the following examples, the first string designates Coordinated Universal Time (UTC), and the second designates the time in a time zone that's seven hours earlier than UTC: "2008-11-01T19:35:00.0000000Z" "2008-11-01T19:35:00.0000000-07:00"

OCL	Result
'2018-08-18T07:22:16.0000000Z'.tryParse('')	8/18/2018 10:22: 16 AM
'2018-08-18T07:22:16.0000000-07:00'.tryParse('')	8/18/2018 5:22:16 PM

*A string that includes the GMT designator and conforms to the RFC 1123 time format; for example: "Sat, 01 Nov 2008 19:35:00 GMT"

OCL	Result
'Sat, 18 Aug 2018 07:22:16 GMT'.tryParse('')	8/18/2018 10:22:16 AM

*A string that includes the date and time along with time zone offset information; for example: "03/01/2009 05:42:00 -5:00"

OCL	Result
'08/18/2018 07:22:16 -5:00'.tryParse('')	8/18/2018 3:22:16 PM