A time-only field

I've been involved in building a few conference websites recently, and with numerous events happening during the day (speaker slots, workshops etc.) having a full date field becomes a bit of a pain for the editors. It would be great if there could be a time-only field that didn't require the input of a date too.

I can see it being useful in other scenarios where you have multiple slots in a day, repeating every day, but where the date itself is not important.

Thanks.

G.