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

Can't find any compound Sanskrit words containing kalasya.