PDOException not handled when using PostgreSQL without timezone support

I have a site that uses PostgreSQL. When setting up a date-pager (a component of the date_view module), suddenly my site gets these errors:

PDOException: SQLSTATE[22023]: Invalid parameter value: 7 ERROR: time zone "US/Central" not recognized: SELECT '2008-02-15 12:00:00 UTC' AT TIME ZONE 'US/Central'; Array ( ) in date_sql_handler->db_tz_support() (line 112 of /home/myuser/public_html/sites/all/modules/contrib/date/date_api/date_api_sql.inc).

This site was imported as-is from another installation, on a server where they had already configured Postgres, and this error did NOT occur there, when I set up the date pager following the exact same procedure (create a date contextual filter, then enable paging by date). My new (shared) host is in the "US/Central" timezone, so I suspect this is due to something to do with their Postgres config.

The error is happening at a place in the code where it is doing this: "See if the db has timezone name support." Clearly, in my case, the db does NOT have timezone name support, but this fact is getting clobbered by an exception.