Jubilees 50:4
3 The land will observe its sabbaths when they live on it, and they are to know the year of the jubilee. 4 For this reason I have arranged for you the weeks of years and the jubilees — 49 jubilees from the time of Adam until today, and one week and two years. It is still 40 years off (for learning the Lord’s commandments) until the time when he leads them across to the land of Canaan, after they have crossed the Jordan to the west of it. 5 The jubilees will pass by until Israel is pure of every sexual evil, impurity, contamination, sin, and error. Then they will live confidently in the entire land. They will no longer have any satan or any evil person. The land will be pure from that time until eternity.
Daniel 9:24
23 At the beginning of your requests a message went out, and I have come to convey it to you, for you are of great value in God’s sight. Therefore consider the message and understand the vision: 24 “Seventy weeks have been determined concerning your people and your holy city to put an end to rebellion, to bring sin to completion, to atone for iniquity, to bring in perpetual righteousness, to seal up the prophetic vision, and to anoint a Most Holy Place. 25 So know and understand: From the issuing of the command to restore and rebuild Jerusalem until an anointed one, a prince arrives, there will be a period of seven weeks and sixty-two weeks. It will again be built, with plaza and moat, but in distressful times. 26 Now after the sixty-two weeks, an anointed one will be cut off and have nothing. As for the city and the sanctuary, the people of the coming prince will destroy them. But his end will come speedily like a flood. Until the end of the war that has been decreed there will be destruction.
Notes and References
"... A somewhat different, and potentially more sophisticated, approach was adopted by other writers during Second Temple times, and that was to fix on the larger unit of time called the jubilee. After all, the jubilee was mentioned as a significant measure of time within the Torah itself so it must be important! This 49-year unit was not only composed of seven sub-units of seven years apiece (“weeks of years”), but it itself could be thought of as a sub-unit of still larger blocks of time. So it was that some writers of this period liked to think of history as moving forward in units of ten jubilees apiece - 490 years. (Also reflected in Daniel 9:24-27, where seven weeks of seventy years equals 490 years ...) But even that might be on the small side; perhaps the main events in Israel’s history were demarcated by even larger units. The point was that, if one considered these larger numerical patterns, the idea of divine control of Israel’s history could be upheld despite the little surface disturbances that might spring up for a century or two and then disappear ..."
Kugel, James L. A Walk through Jubilees: Studies in the Book of Jubilees and the World of Its Creation (pp. 9-10) Brill, 2012