yaḥ kālaḥ śata-saṅkhyayoḥ
tam evāhur yugaṁ taj-jñā
yatra dharmo vidhīyate
sandhyā—transitional period before; sandhyā-aṁśayoḥ—and transitional period after; antaḥ—within; yaḥ—that which; kālaḥ—duration of time; śata-saṅkhyayoḥ—hundreds of years; tam eva—that period; āhuḥ—they call; yugam—millennium; tat-jñāḥ—the expert astronomers; yatra—wherein; dharmaḥ—religion; vidhīyate—is performed.
The transitional periods before and after every millennium, which are a few hundred years as aforementioned, are known as yuga-sandhyās, or the conjunctions of two millenniums, according to the expert astronomers. In those periods all kinds of religious activities are performed.
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