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time_module.f90
111 lines (74 loc) · 2.43 KB
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time_module.f90
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module time_module
use kind_module, only : i4b, sp
implicit none
private
type, public :: time_type
integer(kind=i4b) :: year, month, day, hour, minute
real(kind=sp) :: second
end type time_type
private :: add_time
public :: time_yyyymm, time_yyyymmdd, time_yyyymmddhh, time_hhmm, time_hhmmss, operator(+)
interface operator(+)
module procedure add_time
end interface
contains
function time_yyyymm(time) result(t)
implicit none
type(time_type), intent(in) :: time
integer(kind=i4b) :: t
t = time % year * 100 + time % month
end function time_yyyymm
function time_yyyymmdd(time) result(t)
implicit none
type(time_type), intent(in) :: time
integer(kind=i4b) :: t
t = time_yyyymm(time)
t = t * 100 + time % day
end function time_yyyymmdd
function time_yyyymmddhh(time) result(t)
implicit none
type(time_type), intent(in) :: time
integer(kind=i4b) :: t
t = time_yyyymmdd(time)
t = t * 100 + time % hour
end function time_yyyymmddhh
function time_hhmm(time) result(t)
implicit none
type(time_type), intent(in) :: time
integer(kind=i4b) :: t
t = time % hour * 100 + time % minute
end function time_hhmm
function time_hhmmss(time) result(t)
implicit none
type(time_type), intent(in) :: time
integer(kind=i4b) :: t
t = time % hour * 10000 + time % minute * 100 + nint(time % second)
end function time_hhmmss
function add_time(t1, t2) result (t)
use calendar_module, only : calendar_dayofyear, calendar_date
implicit none
type(time_type), intent(in) :: t1, t2
type(time_type) :: t
integer(kind=i4b) :: inc, doy
integer(kind=i4b), dimension(3) :: ymd
t % second = t1 % second + t2 %second
inc = floor(t % second / 60.0)
t % second = t % second - inc*60.0
t % minute = t1 % minute + t2 % minute + inc
inc = t % minute / 60
t % minute = modulo(t % minute, 60)
t % hour = t1 % hour + t2 % hour + inc
inc = t % hour / 24
t % hour = modulo(t % hour, 24)
t % day = t1 % day + t2 % day + inc
t % month = t1 % month + t2 % month
inc = (t % month-1) / 12
t % month = modulo((t % month-1), 12) + 1
t % year = t1 % year + t2 % year + inc
ymd = calendar_date(t % year, &
calendar_dayofyear(t % year, t % month, t % day))
t % year = ymd(1)
t % month = ymd(2)
t % day = ymd(3)
end function add_time
end module time_module