Molad based on a constant interval cycle that is widely but incorrectly regarded as an approximation of the time in Jerusalem of the mean lunar conjunction. Each "molad" moment occurs exactly 29 days 12 hours 44 minutes and 3+/ seconds (or, equivalently, 29 days 12 hours and 44+/ minutes) after the previous "molad" moment. This interval is numerically exactly the same as the length of the mean synodic month that was published by Ptolemy in the Almagest, who cited Hipparchus as its source. Although in the era of Hipparchus (2nd century BC) this interval was equal to the average time between
Riverside Beaver County School District and administrators with an average teacher salary of $57,898 and a top salary of $112,815. The work year is 186 days with 180 student instruction days. Teachers work 7 hours 45 minutes with a 30-minute duty-free lunch and a daily preparation period. Teachers receive extra pay for extra required work like updating curriculum. Additionally, the teachers receive a defined benefit pension, health insurance, professional development reimbursement, 3 paid personal days, 10 paid sick days (which accumulate) vision insurance, dental insurance and many other benefits. Guidance counselors receive extra $400 pay plus extra summer pay. In 2011, the average teacher salary