Any event to trigger once delay completed in jquery ui.sortable

Any event to trigger once delay completed in jquery ui.sortable

Hi All,

In Jquery UI.Sortable, We can give delay to start the sort.

I want to know , is there any event that to identify once the delay(i.e.,ms)  completed.

I tried all events in the API list, start, activate,...

all the events triggered when i start to move the item.

I want to know when i hold(click & hold) the item for some nth-millisecond - trigger an event.

Kindly provide any idea to proceed ASAP.

Any clue or hack fix welcome ASAP.

Thanks,
Hari