Choviar (Chauvihār) begins at local sunset. It is the Jain vow to stop taking food (and, in stricter observance, even water) from sunset until the next sunrise.

• Shwetambar: commonly stop all food from sunset; some allow only boiled water at set times as per maryādā.
• Digambar: generally stop both food and water from sunset.

For Austin, Texas today (Wednesday, August 20, 2025), sunset is approximately 8:05 PM CDT. That is your Choviar time. If you follow a stricter maryādā, complete eating a little before this time as guided by your guru or community.