Expand description
Time scales
Functionsยง
- d2dtf
- Format for output a 2-part Julian Date (or in the case of UTC a quasi-JD form that includes special provision for leap seconds).
- dat
- For a given UTC date, calculate Delta(AT) = TAI-UTC.
- dtdb
- TDB-TT difference
- dtf2d
- Encode date and time fields into 2-part Julian Date (or in the case of UTC a quasi-JD form that includes special provision for leap seconds).
- taitt
- taiut1
- taiutc
- Time scale transformation: International Atomic Time, TAI, to Coordinated Universal Time, UTC.
- tcbtdb
- Time scale transformation: Barycentric Coordinate Time, TCB, to Barycentric Dynamical Time, TDB.
- tcgtt
- Time scale transformation: Geocentric Coordinate Time, TCG, to Terrestrial Time, TT.
- tdbtcb
- Time scale transformation: Barycentric Dynamical Time, TDB, to Barycentric Coordinate Time, TCB.
- tdbtt
- Time scale transformation: Barycentric Dynamical Time, TDB, to Terrestrial Time, TT.
- tttai
- Time scale transformation: Terrestrial Time, TT, to International Atomic Time, TAI.
- tttcg
- Time scale transformation: Terrestrial Time, TT, to Geocentric Coordinate Time, TCG.
- tttdb
- Time scale transformation: Terrestrial Time, TT, to Barycentric Dynamical Time, TDB.
- ttut1
- Time scale transformation: Terrestrial Time, TT, to Universal Time, UT1.
- ut1tai
- Time scale transformation: Universal Time, UT1, to International Atomic Time, TAI.
- ut1tt
- Time scale transformation: Universal Time, UT1, to Terrestrial Time, TT.
- ut1utc
- Time scale transformation: Universal Time, UT1, to Coordinated Universal Time, UTC.
- utctai
- utcut1
- Time scale transformation: Coordinated Universal Time, UTC, to Universal Time, UT1.