Right so gan gery Venus overcaste
The hertes of hir folk; right as hir day
Is gerful, right so chaungeth she array.
Selde is the Friday al the wyke ylyke."
'All this is very little to the point unless we suppose Friday to be the day. Or, if the reader have still any doubt about this, let him observe the curious accumulation of evidence which is to follow.
'Palamon and Arcite meet, and a duel is arranged for an early hour on the day following. That is, they meet on Saturday, May 5. But, as Saturday is presided over by the inauspicious planet Saturn, it is no wonder that they are both unfortunate enough to have their duel
interrupted by Theseus, and to find themselves threatened with death. Still, at the intercession of the queen and Emily, a day of assembly for a tournament is fixed for "this day fifty wykes" (l. 1850). Now we must understand "fifty wykes" to be a poetical expression for a year. This is not mere supposition, however, but a certainty; because the appointed day was in the month of May, whereas fifty weeks and no more would land us in April. Then "this day fyfty wekes" means "this day year," viz. on May 5. [In fact, Boccaccio has 'un anno intero'; Tes. v. 98.]
'Now, in the year following (supposed not a leap-year), the 5th of May would be Sunday. But this we are expressly told in l. 2188. It must be noted, however, that this is not the day of the tournament[[23]], but of the muster for it, as may be gleaned from ll. 1850-1854 and 2096. The eleventh hour "inequal" of Sunday night, or the second hour before sunrise of Monday, is dedicated to Venus, as explained by Tyrwhitt (l. 2217); and therefore Palamon then goes to the temple of Venus. The next hour is dedicated to Mercury. The third hour, the first after sunrise on Monday, is dedicated to Luna or Diana, and during this Emily goes to Diana's temple. The fourth after sunrise is dedicated to Mars, and therefore Arcite then goes to the temple of Mars. But the rest of the day is spent merely in jousting and preparations—
"Al that Monday justen they and daunce." (l. 2486.)
The tournament therefore takes place on Tuesday, May 7, on the day of the week presided over by Mars, as was very fitting; and this perhaps helps to explain Saturn's exclamation in l. 2669, "Mars hath his wille."'—Walter W. Skeat, in Notes and Queries, Fourth Series, ii. 2, 3; Sept. 12, 1868 (since slightly corrected).