Dear Swathi,
Check the time zone in SPRO --> SAP NetWeaver --> General Settings --> Time Zones --> Maintain System Settings.
Here System Time Zone and User's Default Time Zone both are same (along with Time Zones Active check box should be Ticked) , then the above mentioned problem wont occurs.
Still problem exists, then go to SU01, enter your user name, go to Defaults tab and under the Personal Time Zone window, maintain "of the User" time zone as same as Sys. Time Zone. After this setting, log-off and relogin and try to create the production order.
Please check and revert back.
Regards,