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List of available reference systems

ptrb edited this page May 30, 2013 · 2 revisions

Make use of the different systems by combining a reference system type flag with an appropriate ID. Read about the syntax to get the details.

Calendar Systems

At this point we provide only a entirely superficial description of PostTIME's calendar systems. Please look up the details some where else.

ID Name Short Description
1 Gregorian calendar This system is the standard calendar in many countries as well as on the international level.
2 Julian calendar In the most European countries this calendar was in use before the Gregorian calendar was introduced. In some domains it is still in use.

Temporal Coordinate Systems

ID Name Origin Unit
1 Julian Day -4713-01-01 in the Julian calendar Day
2 UNIX time 1970-01-01 Second
3 The internal system same as Julian Day Milliseconds

Ordinal Systems

ID Name Eras (with this order)
1 Geological epochs Ediacaran, Neoproterozoic, Proterozoic, Cambrian, Ordovician, Silurian, Devonian, Carboniferous, Paleozoic, Triassic, Jurassic, Mesozoic, Paleogene, Neogene, Quaternary

Hint: Convert between the various systems with the function pt_transform_system.