Mega Code Archive

Strtotime - converts a time string into a tdatetime value sysutils unit

1 function StrToTime ( const Time : string ) : TDateTime; 2 function StrToTime ( const Time : string; const FormatSettings : TFormatSettings ) : TDateTime; Description The StrToTime function attempts to convert a time as a string Date into a TDateTime value. The time string must adhere to the format of the LongTimeFormat value, and use the TimeSeparator character to separate the hour, minute and second values. The default format in the UK is hour:minute:second.milli-seconds, where : The hour must be 0..23 The minute must be 0..59 (optional) The second must be 0..59 (optional) The milli-secs must be 0..999 (optional) You may use the current AM and PM value (as defined by TimeAMString, TimePMString), or the literals 'AM', 'am', 'PM' and 'pm' before or after the time. The date is set to 30 dec 1899, one day short of the 19th century. Any errors in the time string will yield EConvertError. Version 2 of this function is for use within threads. You furnish the FormatSettings record before invoking the call. It takes a local copy of global formatting variables that make the routine thread safe. Notes Warning : the date value is set to 1 day short of the end of the 19th century. Exactly why is unclear. Related commands LongTimeFormat Long version of the time to string format StrToDate Converts a date string into a TDateTime value StrToDateTime Converts a date+time string into a TDateTime value TimeAMString Determines AM value in DateTimeToString procedure TimePMString Determines PM value in DateTimeToString procedure TimeSeparator The character used to separate display time fields TimeToStr Converts a TDateTime time value to a string Example code : Showing with and without minutes and/or seconds var myTime : TDateTime; begin myTime := StrToTime('3PM'); ShowMessage('3PM = '+TimeToStr(mytime)); myTime := StrToTime('15'); ShowMessage('15 = '+TimeToStr(mytime)); myTime := StrToTime('15:03'); ShowMessage('15:03 = '+TimeToStr(mytime)); myTime := StrToTime('15:03:45'); ShowMessage('15:03:45 = '+TimeToStr(mytime)); end; Show full unit code 3PM = 15:00:00 15 = 15:00:00 15:03 = 15:23:00 15:03:45 = 15:23:45