Does prophetic time have room for measurement uncertainty?

The Adventist church has a deep penchant for timekeeping, most vividly on display in our 7th day Sabbath focus. The second most prominent example is an obsession with time periods in the prophetic visions of Daniel. It is fascinating to ponder Time as the Temple of God, especially in the light of eschatology. How should we live now in the light of expectation - how will the future shape your present?