# RTC_ConvertDateToDay

## C Specification

  `#include <nitro/rtc.h>`

      s32 RTC_ConvertDateToDay( const RTCDate* date );

## Arguments

date | Pointer to the buffer storing date data.

## Return Values

The total number of days elapsed, using January 1, 2000 as 0. If input is invalid, returns -1.

## Description

Returns as an s32 the total number of days elapsed, using January 1, 2000 as 0.

## See Also

`RTC_ConvertDayToDate, RTCDate`

## Revision History

05/17/2005 Initial version.