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A megasecond (symbol: Ms) is 1 million seconds, or roughly 11.6 days. There are roughly 31.6 megaseconds in a year. This page lists times between 1 and 1000 megaseconds (106 seconds and 109 seconds), or 11.6 days and 31.6 years. ==<1 year== * 1.2096 Ms (14 days) – a fortnight * 2.3605915 Ms (27.3217 days) – sidereal month * 2.4192 Ms (28 days) – length of February in non-leap years * 2.5056 Ms (29 days)– length of February in a leap year * 2.55144 Ms (29.53059 days) – mean synodic month * 2.592 Ms (30 days) – length of the months April, June, September, and November * 2.629746 Ms (30.436875 days) – mean length of a Gregorian calendar month * 2.6784 Ms (31 days) – length of the months January, March, May, July, August, October, and December * 6.652 Ms (77 days) - length between the introduction and discontinuation of New Coke * 7.6 Ms (87 days 23.3 hours) – one orbit of Mercury * 7.776 Ms (90 days) – approximate length of a quarter year, a common corporate and financial reporting interval * 8.208 Ms (95 days) - length of Napoleon's attempt at regaining power, known as the Hundred Days * 8.64 Ms (100 days) - approximate length of the Rwandan genocide * 19.4141 Ms (224.701 days) — one orbit of Venus * 22.464 Ms (260 days) — length of the Tzolk'in, or Sacred Round, in the Mayan calendar * 24.192 Ms (280 days) — average length of a human pregnancy * 26.2656 Ms (304 days) — length of the year in the calendar of Romulus * 30.4992, 30.672 or 30.586 Ms (353, 354 or 355 days) — the lengths of regular years in some lunisolar calendars * 30.6173136 Ms (354.37 days) — 12 lunar months; the average length of a year in lunar calendars * 31.104 Ms (360 days) — one ''tun'' in the Mesoamerican Long Count calendar * 31.4159265... Ms () — The value of pi times 107 seconds is sometimes given as an approximate year value; it works out to 363.61026 days. * 31.536 Ms (365 days) — a regular year in many solar calendars. Also the fixed length of the year in the Ancient Egyptian calendar and the length of a Haab in the Mayan calendar. * 31.556925 Ms (365.24219 days) — a mean tropical year near the year 2000 * 31.556943 Ms (365.2424 days) — a vernal equinox year. * 31.556952 Ms(365.2425 days) — the average length of a year in the Gregorian calendar * 31.5576 Ms (365.25 days) — a Julian year, the average length of a year in the Julian calendar * 31.558153 Ms (365.2564 days) — a sidereal year 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「megasecond」の詳細全文を読む スポンサード リンク
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