How to transfer data from Sybase to SQL Server database?
Method 1: You can use ODBC connections to create an SSIS package which will fetch the data from SYBASE database onto SQL server. On how to use or create such SSIS Package read Extracting data from Sybase SQL Anywhere using SSIS through ODBC.
Then Schedule the above created package via SQL agent job to update data on SQL server as per schedule which meets the requirement.

Method 2: You can create a Linked server which fetches the required data from Sybase to SQL as described here.

And then create a job executing the task that refresh data from SQL Anywhere onto SQL Server using OPENQUERY