Nasa 2025 Calendar Calculator. 00_calendar_cover_2025_caption.pptx [44.7 kb] inside cover image of the 2025 nasa science calendar. The table shows web page times and actual times of vernal equinox published in nasa reference publication 1349 [1994 october] for years 1995 to 2010 and in explanatory.
28 (solar cycle) × 19 (lunar cycle) × 15 (indiction cycle) = 7980 years. Noaa solar calculator find sunrise, sunset, solar noon and solar position for any place on earth