Although we tend to be loosey-goosey in our use of terminology---routinely calling the time period referenced by Daniel and John as a "prophetic year" because 360 days is almost a year long, Yahweh is very precise. He never actually calls His prophetic time unit a "year." Daniel lists the whole subject of Israel's prophetic destiny as "seventy sevens." The "covenant with many" that defines the duration of the Tribulation is called "one seven." He speaks of "the middle of the seven." Both Daniel and John refer to half of the "seven" as "time, times, and half a time." Other time durations are measured in days (e.g. 1,260, 1,290, 1,335) or months (e.g. 5, 42). But the prophetic time unit is never referred to as a year. The only time the term "year" is used in a prophetic time calculation in the context of the "seventy sevens" is the preparation time for the four angels of the sixth trumpet judgment, and here there is no reason to suppose that anything other than a normal 365-day year is meant.

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