asyncronous Data fetch

Does anyone have a method of loading data via curl asynchronously please ?

Hi all,

I have a fetch data node grabbing unix time from. [http://worldtimeapi.org/api/timezone/Europe/London ]

(http://worldtimeapi.org/api/timezone/Europe/London). All works well, but if the connection is slow, everything grinds to a halt till its finished. Sometimes it locks everything up for 10sec, including the display. How can I fetch it asynchronously please ? Ive tried using a spin off event as trigger but doesnt work.