Times is plural and I believe to properly interpret the verse you must understand it as plural. The word itself can be applied unto any number of (things) that will be changed by the (man of sin) I.E. the Lawless one. (He will plan to alter the seasons and the law) is the way the Tanach translates it. Again, we must understand this in light of the timing of the verse (I.E. the end of the age)
I will consent that it could apply to the Sabbath and the possibility that he will demand a different day to be set aside and or declare a universal day of worship such as the picture of the O.T. presents in the Image built for Nebuchadnezzar which came with a demand to worship at particular times that had been set.
Is this spirit not already in effect? (certianly it has not come to its fulness)
“Sunday is our mark or authority...the church is above the Bible, and this transference of Sabbath observance is proof of that fact.” Catholic Record of London, Ontario, September 1, 1923.
Exodus 31:13, "Speak also to the children of Israyl, saying; Surely My Sabbaths you shall keep, for they are a
*sign between Me and you throughout your generations, that you may know that I am Yahweh
Who sanctifies you, and makes you holy."
*sign=Word #226, Hebrew Dictionary,Strong's Exhaustive Concordance,
meaning
mark, token, sign, consent, flag, evidence of consent.
“Of course the Catholic Church claims that the change (Saturday Sabbath to Sunday) was her act...And the act is a mark of her ecclesiastical authority in religious things.” H.F. Thomas, Chancellor of Cardinal Gibbons
Ezekiyl 20:12, "Moreover, I also gave them My Sabbaths, to be a sign between Me and them, that they might know that I am Yahweh Who sanctifies them."
“Protestants...accept Sunday rather than Saturday as the day for public worship after the Catholic Church made the change...But the Protestant mind does not seem to realize that...In observing the Sunday, they are accepting the authority of the spokesman for the church, the Pope.” Our Sunday Visitor, February 15, 1950.
Council of Laodicea (4th Century) Canon 29
"Christians must not judaize by resting on the Sabbath, but must work on that day, rather honouring the Lord's Day; and, if they can, resting then as Christians. But if any shall be found to be judaizers, let them be anathema from Christ."