How do I check if a given datetime object is "between" two datetimes?

Question

my_event = Event.objects.get(id=4)
current_time = datetime.datetime.now()

How do I do check if my current time is between them?

my_event.start_time < current_time < my_event.end_time

Answer 1

Your answer is the way to go as long as start_time and end_time don't have an associated tzinfo class. You can't directly compare a naive datetime with a timezoned-datetime.

Answer 2

You could write extension methods for the DateTime class to provide this feature for you.

public static class DateTimeExtensions
{
    public static bool Between(this DateTime current, DateTime startTime, DateTime endTime)
    {
        return startTime <= currentTime <= endTime;
    }
    public static bool Within(this DateTime current, DateTime startTime, DateTime endTime)
    {
        return startTime < currentTime < endTime;
    }
}

Then you have a nice syntax like:

if (current_time.Within(my_event.start_time, my_event.end_time))
{
}

Answer 3

you can use a simple if comparing three dates, like this

if date1 < yourdate < date2:
  ...do something...
else:
  ...do ...