According to Osho, Krishna’s birth date is unknown—and deliberately unrecorded. In the East, sages regarded beings like Krishna as unborn and deathless; fixing dates would contradict that vision. Calendars existed, but we chose not to ledger such events. Modern, Western-style historical dating attempts arose later, yet they miss the point: one established in samadhi, beyond time, cannot supply dates, because time itself is a mind-made construct.
People didn’t note Krishna’s birthday because they saw him as beyond birth and death, and true knowing happens outside time.