MediaWiki:Gadget-UTCLiveClock.js

( function( $ ) {

    function showTime( $target ) {
        var now = new Date();
        var hh = now.getUTCHours();
        var mm = now.getUTCMinutes();
        var ss = now.getUTCSeconds();
        var time = ( hh < 10 ? '0' + hh : hh ) + ':' + ( mm < 10 ? '0' + mm : mm ) + ':' + ( ss < 10 ? '0' + ss : ss );
        $target.text( time );
    }
     
    function liveClock() {
        appendCSS( '#utcdate a { font-weight:bolder; font-size:120%; }' );
     
        var container = $('#p-personal ul:first');
        if(!container.length) return false;
        container = container.append('<li id="utcdate"><a href="'+wgScript + '?title=' + encodeURIComponent( wgPageName ) + '&action=purge'+'"></a></li>').find('#utcdate a');
        showTime( container );
        var interval = setInterval( function(){
            try { 
            	showTime(container);
            } catch(e){
				clearInterval(interval);
            }
        }, 1000);
        return true;
    }

    if ( !liveClock() )
             $( document ).ready( liveClock );
     
} )( jQuery );