[Overview][Constants][Procedures and functions][Index] | Reference for unit 'DateUtils' (#rtl)

# DayOfTheYear

Extracts the day of the year from a TDateTime value

## Declaration

Source position: dateutil.inc line 192

`function DayOfTheYear(`
`const AValue: TDateTime`
`):Word;`

## Arguments

`AValue` |  | TDateTime to extract the day of the year from.

## Function result

Day of the year from AValue.

## Description

DayOfTheYear returns the number of days that have passed since the start of the year till the moment indicated by AValue. This is a one-based number, i.e. January 1 will return 1.

For an example, see the WeekOfTheYear function.

## See also

WeekOfTheYear |  | Extract the week of the year (and optionally year) of a TDateTime indication.
HourOfTheYear |  | Calculate the number of hours passed since the start of the year.
MinuteOfTheYear |  | Calculate the number of minutes elapsed since the start of the year
SecondOfTheYear |  | Calculate the number of seconds elapsed since the start of the year.
MilliSecondOfTheYear |  | Calculate the number of milliseconds elapsed since the start of the year.