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The following suite definition is NOT a real design, it just demonstrates all the variety of way of adding time dependencies.

Code Block
languagepy
from ecflow import Defs,Suite,Task,Day,Date,Cron,Time,TimeSlot,TimeSeries

start task = ecflow.Task("t2") # create a task
 task2.add_date( 1,2,2010 ) # day, month, year
 task2.add_date( 1,0,0 )TimeSlot(0, 0)
finish = TimeSlot(23, 0)
incr = TimeSlot(0, 30)
time_series = TimeSeries(start, finish, incr, True)

defs = Defs(
        Suite("s1",
            Task("date",
                Date(1, 0, 0),                   # first of eachevery month orand every year same as: 1..
 task2.add_day( "monday" )
 task2.add_today( 0,10 ) # hour, minute, same as today 0:10
 task2.add_today( ecflow.Today( 0,59, True )) # hour, minute, relative, same as today +0:59
 start = ecflow.TimeSlot(0,0) # adding a time series
 finish = ecflow.TimeSlot(23,0)
 incr = ecflow.TimeSlot(0,30)
 ts = ecflow.TimeSeries( 
                Date("2.*.*"),                   # second of every month and every yea
                Date(28,2,2026)),                # 28 February 2026
            Task("day",
                Day("monday"),
                Day(Days.tuesday)),
            Task("time",
                Time("+00:30"),                  # 30 minutes after suite has begun
                Time("+00:30 20:00 01:00"),      # 00:30,01:30,02:30....07:30 after suite start
                Time(0, 59, True),               # 00:59 - 59 minutes past midnight
                Time(TimeSlot(20, 10)),          # 20:10 - 10 minutes pas eight
                Time(TimeSlot(20, 20), True),    # +20:20 - 20 minutes and 20 hours, after suite start
                Time(time_series),
                Time(0, 10),
                Time("+00:40"),
                Time("+00:40 20:00 01:00")),
            Task("cron",
                Cron("+00:00 23:00 00:30",days_of_week=[0,1,2,3,4,5,6],days_of_month=[1,2,3,4,5,6],months=[1,2,3,4,5,6]))))

The following show alternative example that produces the same definition:


Code Block
languagepy
start = TimeSlot(0, 0)
finish = TimeSlot(23, 0)
incr = TimeSlot(0, 30)
time_series = TimeSeries(start, finish, incr, True)

...

...

...

...

...

...

...

...

...

...

cron =

...

Cron()

...

cron.set_week_days( [0,1,2,3,4,5,6] )

...

cron.set_days_of_month( [1,2,3,4,5,6] )

...

cron.set_months( [1,2,3,4,5,6] )

...

cron.set_time_series( "+00:00 23:00 00:30" )

defs = Defs().add(
        Suite("s1").add(
         Task("date").add(
           Date(1, 0, 0),
           Date("2.*.*"),
           Date(28,2,2026)),
         Task("day").add(
           Day("monday"),
           Day(Days.tuesday)),
         Task("time").add(
           Time("+00:30"),
           Time("+00:30 20:00 01:00"),
           Time(0, 59, True),
           Time(TimeSlot(20, 10)),
           Time(TimeSlot(20, 20), True),
           Time(time_series),
           Time(0, 10),
           Time("+00:40"),
           Time("+00:40 20:00 01:00")),
         Task("cron").add(cron)))



Code Block
languagepy
start = TimeSlot(0, 0)
finish = TimeSlot(23, 0)
incr = TimeSlot(0, 30)
time_series = TimeSeries(start, finish, incr, True)

defs = Defs() + ( Suite("s1") + Task("date") + Task("day") + Task("time") + Task("cron"))
defs.s1.date += [ Date(1, 0, 0), Date("2.*.*"),  Date(28,2,2026) ]
defs.s1.day +=  [ Day("monday"), Day(Days.tuesday) ]
defs.s1.time += [ Time("+00:30"), Time("+00:30 20:00 01:00"), Time(0, 59, True),
                  Time(TimeSlot(20, 10)), Time(TimeSlot(20, 20), True),
                  Time(time_series), Time(0, 10), Time("+00:40"),
                  Time("+00:40 20:00 01:00") ]
defs.s1.cron += Cron("+00:00 23:00 00:30",
                     days_of_week=[0,1,2,3,4,5,6],
                     days_of_month=[1,2,3,4,5,6],
                     months=[1,2,3,4,5,6])



Warning

In the example above we use 'defs.s1.date' to reference a node by name. This is useful in small designs but will produce maintenance issues in large designs IF the node names are changed.

task2.add_cron( cron );