In Indian astrological texts, the standard order for listing the planets is that of the days of the week (Sun, Moon, Mars, Mercury, Jupiter, Venus, Saturn). I can't remember seeing this in any non-Indian texts, but I just noticed that David Pingree writes in his commentary on the Yavanajātaka (II 256), concerning jewels associated with the planets:

The Greek tradition begins with a list ascribed to Nectanebo, the astrologer-lover of Olympias, mother of Alexander the Great (pseudo-Callisthenes, Historia Alexandri Magni 1, 4, 6) ; the text, which follows the order of the planetary week-days beginning with Sunday, should not be dated before the second century A. D.

Is anyone familiar with other sources, outside the Indian tradition, that list the planets in this order?