I18N: Does Time always come after Date?

Question

Does the time always come after the date, with a space in between, in every culture on earth?

i see that Microsoft FCL assumes that it does:

public string get_FullDateTimePattern()
{
    if (this.fullDateTimePattern == null)
    {
        this.fullDateTimePattern = this.LongDatePattern + " " + this.LongTimePattern;
    }
    return this.fullDateTimePattern;
}

Is this an assumption i can make in every development language for every culture?

Answer 1

I would think this to be a stylistic choice more than anything. For example in English either order is acceptable:

I'll see you on November 4th at 5pm.

or

Your appointment is 10am on January 3rd.

I would think the same could apply for most (if not any) culture. Putting the date before the time tends to follow the "big endian" style of putting the most significant values first.

Answer 2

I don't know of any specific locales, but: The widely used ISO standard 8601 (often used e.g. in XML files) uses datetimes like "2010-03-12T22:30:01+01:00", so the separator in that case would be T instead of a space.