I refer Both(roDateTime and roTimeSpan) documentations. But Here I tried with all types of string But, I'm not able to parse. I tried to parse with "FromISO8601String" field which is available on roDateTime Object and "GetSecondsToISO8601Date" field which is available on roTimeSpan Object. or Is there any option available for change clock format(12 hours or 24 hours) using coding. I refer to this Post TheEndless Suggestion. But no luck.