16.4. Timezones

There is also a session-scoped instance of java.util.Timezone, named org.jboss.seam.international.timezone, and a Seam component for changing the timezone named org.jboss.seam.international.timezoneSelector. By default, the timezone is the default timezone of the server. Unfortunately, the JSF specification assumes all dates and times are UTC, and displayed as UTC, unless a different timezone is explicitly specified with <f:convertDateTime>.

Seam overrides this behavior, and defaults all dates and times to the Seam timezone. In addition, Seam provides the <s:convertDateTime> tag, which always performs conversions in the Seam timezone.

Seam also provides a default date converter to convert a string value to a date. This saves you from having to specify a converter on input fields that capture dates. The pattern is selected according to the user's locale and the time zone is selected as described above.