coordinate clock
91ΔT — This article is about the time difference. For the temperature difference, see psychrometrics. ΔT vs. time from 1657 to 1984[1] ΔT, Delta T, delta T, deltaT, or DT is the time difference obtained by subtracting Universal Time (UT) from… …
92ISO 8601 — Data elements and interchange formats – Information interchange – Representation of dates and times is an international standard covering the exchange of date and time related data. It was issued by the International Organization for… …
93Lunar calendar — A lunar calendar is a calendar that is based on cycles of the lunar phase. A common purely lunar calendar is the Islamic calendar or Hijri calendar. A feature of the Islamic calendar is that a year is always 12 months, so the months are not… …
94Jiffy (time) — This article discusses the word jiffy in the context of measuring time. For other uses, see Jiffy (disambiguation). Jiffy is an informal term for any unspecified short period of time, as in I ll be back in a jiffy . From this it has acquired a… …
95Century — For other uses, see Century (disambiguation). Centuries , Centenary , Centennial , and Centennials redirect here. For other uses, see Centuries (disambiguation), Centenary (disambiguation), Centennial (disambiguation), and Centennials… …
96Solstice — For other uses, see Solstice (disambiguation). UTC date and time of solstices and equinoxes[1] year Equinox Mar Solstice June Equinox Sept Solstice Dec day time day time day time day time 2004 20 …
97Orders of magnitude (time) — Contents 1 Seconds 2 See also 3 Years 4 See also 5 Footnotes …
98Millennium — For other uses, see Millennium (disambiguation). See also: List of millennia A millennium (plural millennia) is a period of time equal to one thousand years (1,000) from the Latin phrase mille, thousand, and annus, year often but not necessarily… …
99Dominical letter — Dominical letters are letters A, B, C, D, E, F and G assigned to days in a cycle of seven with the letter A always set against 1 January as an aid for finding the day of the week of a given calendar date and in calculating Easter. A common year… …
100International Date Line — Date line redirects here. For other uses, see Dateline (disambiguation). The International Date Line around 180° The International Date Line (IDL) is a generally north south imaginary line on the surface of the Earth, passing through the middle… …
