Meaning of the Sanskrit Word: kalasya

  kalasya—of time    SB 2.10.47, SB 3.29.4, SB 3.32.37, SB 5.24.24, SB 7.7.16
  kalasya—of eternal time    SB 1.14.3, SB 2.8.13
  kalasya—of the supreme law of the Almighty    SB 1.8.4
  kalasya—of the eternal time    SB 3.11.17
  kalasya—of formidable Time    SB 4.27.19
  kalasya—time having passed    SB 9.3.11

Can't find any compound Sanskrit words containing kalasya.