I’m not sure what you mean by “chouvihar time.” In Jain practice, timings for daily rituals or programs (including any local event called “chouvihar” or similar) vary by temple, region, and tradition (Digambar vs. Shwetambar). There isn’t a universal, fixed time across all Jain institutions.

If you can tell me your city/temple or the specific ritual you’re referring to, I can give you a precise start time from that temple’s schedule.