2018                 DT= 69.0                         
--------------------------------------------------------------                       
  The epoch T=J2018.5 is the date 2018  July   2.625(JD 2458302.125)
  it corresponds to the Besselian epoch  B2018.50167

                                     d   h  m
 Beginning of the spring March     20, 16 15.5  UT 
    >>            summer June      21, 10 07.3  >>
    >>            autumn September 23,  1 54.1  >>
    >>            winter December  21, 22 22.7  >>

                                     d   h 
 The Earth at perihelion January    3,  5.6 UT
 The Earth at aphelion   July       6, 16.8 >>