| Description |
The DayOfWeek function returns an index number for the day of the week :
| 1 | = Sunday |
| 2 | = Monday |
| 3 | = Tuesday |
| 4 | = Wednesday |
| 5 | = Thursday |
| 6 | = Friday |
| 7 | = Saturday |
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| Notes |
Warning : This is NOT ISO 8601 compliant.
DayOfTheWeek is ISO 8601 compliant, and uses Monday as the start of the week.
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| Related commands |
| DayOfTheMonth |
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Gives day of month index for a TDateTime value (ISO 8601) |
| DayOfTheWeek |
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Gives day of week index for a TDateTime value (ISO 8601) |
| DayOfTheYear |
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Gives the day of the year for a TDateTime value (ISO 8601) |
| MonthOfTheYear |
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Gives the month of the year for a TDateTime value |
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| Example code : Show the day of the week for Christmas 2002 |
var
myDate : TDateTime;
day : string;
begin
myDate := EncodeDate(2002, 12, 31);
day := LongDayNames[DayOfWeek(myDate)];
ShowMessage('Christmas day 2002 is on a '+day);
end;
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| Show full unit code |
Christmas day 2002 is on a Tuesday
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