getDaysInMonth

Get the number of days in the given month and year

Function parameters

Parameters

year:Year
month:Month

Type definitions in this namespace

Types

Month
YearAndDay
MonthAndDay
EpochDay: days since epoch Jan 1, 1970
DaySeconds: seconds since start of day
EpochSeconds: seconds since epoch Jan 1, 1970 at 12:00 AM

Functions in this namespace

Functions

isLeapYear
getDaysInYear
getDaysInMonth: Get the number of days in the given month and year

Jan 01, 1970 AD

Values

posix: Jan 01, 1970 AD
dos: Jan 01, 1980 AD
ios: Jan 01, 2001 AD
openvms: Nov 17, 1858 AD
zos: Jan 01, 1900 AD
windows: Jan 01, 1601 AD
amiga: Jan 01, 1978 AD
pickos: Dec 31, 1967 AD
gps: Jan 06, 1980 AD
clr: Jan 01, 0001 AD
unix: = posix
android: = posix
os2: = dos
bios: = dos
vfat: = dos
ntfs: = windows
ntp: = zos
jbase: = pickos
aros: = amiga
morphos: = amiga
brew: = gps
atsc: = gps
go: = clr
epoch_year: = 1970
secs_per_day: = 24 * 60 * 60

Source

Implementation

pub fn getDaysInMonth(year: Year, month: Month) u5 {
    return switch (month) {
        .jan => 31,
        .feb => @as(u5, switch (isLeapYear(year)) {
            true => 29,
            false => 28,
        }),
        .mar => 31,
        .apr => 30,
        .may => 31,
        .jun => 30,
        .jul => 31,
        .aug => 31,
        .sep => 30,
        .oct => 31,
        .nov => 30,
        .dec => 31,
    };
}