1 hour equals 3600 seconds. 1/10th of an hour is 6 minutes = 360 seconds.
3/10th of an hour is 18 minutes = 1080 seconds. 1080 is the gemetria of the Holy Spirit.
4/10th is 24 minutes = 1440 seconds. There are 1440 minutes in a day.
3.5/10th is 21 minutes = 1260 seconds. 1260 days of the first half of Tribulation.
7/10th is 42 minutes = 2520 seconds. 2520 days is 7 years of Tribulation.
Sara.