standard time

Standard Time
and Time Zones
(and Gregorian Calendar)

time zones

Below is a checklist of standard time and time zone (and Gregorian calendar) postal items (stamps, souvenir sheets, aerogrammes, postal cards, etc.). Catalog numbers, years of issue, and notes on the items featured are given when available. If readers know of additional information or images, please contact the author using the e-mail address at the bottom of this page.

Sections/divisions of the table below
Standard time and time zones
Gregorian calendar


CountryCatalog NumberType of ItemYear of IssueNotes on Content
Standard time and time zones
Argentina1314 (Mi1522)1981100th anniv. Naval Observatory, 1881: 24 time zones
Antigua and Barbuda920 (Mi930)1986Old Greenwich Observatory
Antigua and Barbuda973 (Mi978)920 overprinted with Halley's Comet logo1986Old Greenwich Observatory
Ascension386 (Mi395)1986Old Greenwich Observatory
Fiji183 (Mi?)1962180th meridian: International Date Line
Fiji283 (Mi?)1969Map of Fiji: International Date Line
Great BritainNoneCancel1973Greenwich Day (3 May 1973)
Great Britain742 (Mi675)1975(300th anniv.) Old Greenwich Observatory
Great Britain742 maxiMaxicard
Great Britain1058 (Mi993)1984100th anniv. Greenwich Meridian, 1884: prime meridian (in red), (Apollo-11 ?) satellite view
Great Britain1059 (Mi994)100th anniv. Greenwich Meridian, 1884: prime meridian (in red), English Channel map
Great Britain1060 (Mi995)100th anniv. Greenwich Meridian, 1884: prime meridian (in red), Greenwich observatory
Great Britain1061 (Mi996)100th anniv. Greenwich Meridian, 1884: prime meridian (in red), George Airy's transit telescope
Great Britain1058-1061 fdc1Four stamps and cachet on FDC(As above for stamps)
Great Britain1058-1061 fdc2Four stamps and cancel and cachet (same) on FDC
Great Britain1061 fdcStamp and cancel (same) and cachet (different) on FDC
Great Britain1133-1136 fdc (Mi1060-1063 fdc)Cachet on FDC, also detail1986Old Royal Observatory Greenwich, with Flamsteed House at the right
Great Britain1338 (Mi1298)1990(One tower of) Old Greenwich Observatory
Great Britain1338 cardPHQ card
Great Britain1336-1339 fdc1One of four stamps on FDC
Great Britain1336-1339 fdc2One of four stamps on FDC (different)
Great Britain1336-1339 fdc3One of four stamps on FDC (different)
Great Britain1336-1339 fdc4One of four stamps on FDC (different cancel)
Great BritainNoneCancel2002(Upper part of) Old Greenwich Observatory
Great Britain (Isle of Man)KM10511 crown (silver coin)2000Old Royal Observatory clock face with embedded brass strip from original Prime Meridian
Ivory CoastUnknown ss (BL?)In (upper-right) margin of SS12012Old Greenwich Observatory
Japan732 (Mi771)196175th anniv. Japanese standard time, 1886: sun, earth, meridian
Japan1676 (Mi1687)1986100th anniv. Japanese standard time, 1886: meridian, clock, outline
Kiribati421 (Mi?)1983Map of Kiribati: International Date Line
KiribatiNoneStampcard of 6?International Date Line
KiribatiNoneStampcard of 6 (different value)
Korea (North)2402 (Mi2495)1984100th anniv. Greenwich Mean Time, 1884: clock face
Korea (North)2403 (BL?)SS1
LiberiaKM443$10. (silver coin)2000Greenwich Meridian
New Zealand1628 (Mi1813)From MS10 (1628a (10x 1628))2000Year 2000: International Date Line: world map, sun
New ZealandNonePostcard2008"140 years GMT" (in text on front); "First country to adopt Greenwich Mean Time" (in text on back)
Nicaragua1985f (Mi3297)One of MS16 (1985 (a-p)) (Mi3293-3307)1994Greenwich Observatory
Niuafo'ou (Tonga)46 (Mi46)1984100th anniv. International Date Line, 1884: South Pacific map
Niuafo'ou (Tonga)46 specimenOverprinted "specimen"
Niuafo'ou (Tonga)46+label1Overprinted "specimen" and gutter label1
Niuafo'ou (Tonga)46+label2Overprinted "specimen" and gutter label2
Niuafo'ou (Tonga)46 proofProof
Niuafo'ou (Tonga)47 (Mi47)100th anniv. International Date Line, 1884: globe, map
Niuafo'ou (Tonga)47 specimenOverprinted "specimen"
Niuafo'ou (Tonga)47+label1Overprinted "specimen" and gutter label1
Niuafo'ou (Tonga)47+label2Overprinted "specimen" and gutter label2
Niuafo'ou (Tonga)47 proofProof
Niuafo'ou (Tonga)46-47 fdcTwo stamps and cancel and cachet on FDC(As above)
Palau568 (Mi?)MS6 (568 (a-f))2000Millennium: 24 time zones
Tonga586 (Mi896)1984100th anniv. International Date Line, 1884: George Airy, Greenwich Meridian pioneer
Tonga586 proof1Black-and-white proof
Tonga586 proof2Chromalin proof
Tonga586 specimenOverprinted "specimen"
Tonga586 specimen+labelOverprinted "specimen" and gutter label
Tonga587 (Mi897)100th anniv. International Date Line, 1884: Sanford Fleming, time zone pioneer
Tonga587 proof1Proof
Tonga587 proof2Chromalin proof
Tonga587 specimenOverprinted "specimen"
Tonga587 specimen+labelOverprinted "specimen" and gutter label
Uganda1658m (Mi2261)One stamp and in (left) margin of MS17 (1658 (a-q + label)) (Mi2249-2265)2000Millennium: Highlights, 1850-1900: world time zones establishment
Gregorian calendar
Germany (West)1383 (Mi1155)1982400th anniv. Gregorian Calendar, 1582: calendar illumination
Vatican City715 (Mi811)1982400th anniv. Gregorian Calendar, 1582: surveying the globe
Vatican City716 (Mi812)400th anniv. Gregorian Calendar, 1582: edict of reform
Vatican City717 (Mi813)400th anniv. Gregorian Calendar, 1582: presenting edict
Vatican City717a (BL4)MS3 (715-717)400th anniv. Gregorian Calendar, 1582


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