Clk_GetDayOfWk
Get the day of week.
Files
clk.h/clk.c
Prototype
CLK_DAY Clk_GetDayOfWk (CLK_YR yr,
CLK_MONTH month,
CLK_DAY day);
Arguments
yr
Year value [1900 to 2135].
month
Month value [1 to 12], (January to December).
day
Day value [1 to 31].
Returned Values
Day of week [1 to 7] (Sunday to Saturday), if no errors.
CLK_DAY_OF_WK_NONE, otherwise
Required Configuration
None.
Notes / Warnings
It’s only possible to get a day of week of an epoch supported by Clock:
Earliest year is the NTP epoch start year, thus Year (
yr) must be greater than or equal toCLK_NTP_EPOCH_YR_START.Latest year is the Clock epoch end year, thus Year (
yr) must be less thanCLK_EPOCH_YR_END.
Example Usage
Listing - Clk_GetDayOfWk() Example Usage
CLK_DAY day_of_wk;
day_of_wk = Clk_GetDayOfWk(2010, 9, 18);
printf("day of week = %u", day_of_wk);