Many scriptures in Sanathan dharma says about cyclic nature of time at many places.
Consider some of the excerpts
Hundreds and thousands of great-Kalpas, hundreds and thousands of Creation and Dissolutions, O king of kings, have been over and have become incidents of the past.
From Yoga Vasistha
Sir, you have seen the many changes of the world, and have been experienced in all things in the repeated course of creations; must be best able to tell me the wonders that you have witnessed during the revolution of ages.
Is there any similar mentioning in Valmiki Ramayana that imply the cyclic nature of time in terms of creation and dissolution?