I would like to use different `TimeZone` base on the User's `TimeZone`. 

**Question :** Is there any feature to set default in `JSF` or `Seam`?
It will be effect the whole application.

I hope, the feature will be effect `s:convertDateTime`, `f:convertDateTime`, `p:calendar`, etc... every time I use without using `timezone` attribute.

I also tried to use `Seam` component `TimeZoneSelector` as below.

```
@In
private TimeZoneSelector timeZoneSelector;
....
timeZoneSelector.setTimeZone(user.getTimeZone());

```

But, it does not effect on `<f:convertDateTime pattern="hh:mm a"/>` automatically.
I have to retrieve `TimeZone` form backing bean again.

```
<f:convertDateTime pattern="hh:mm a" timeZone="#{mybean.timeZone}"/>

```