setDay method
Change day
of this date
set hour
if you want to change it as well, to skip an change other optional field set it as null
set minute
if you want to change it as well, to skip an change other optional field set it as null
set second
if you want to change it as well, to skip an change other optional field set it as null
set millisecond
if you want to change it as well, to skip an change other optional field set it as null
set microsecond
if you want to change it as well
Implementation
DateTime setDay(
int day, [
int? hour,
int? minute,
int? second,
int? millisecond,
int? microsecond,
]) =>
DateTime(
year,
month,
day,
hour ?? this.hour,
minute ?? this.minute,
second ?? this.second,
millisecond ?? this.millisecond,
microsecond ?? this.microsecond,
);