Trying to Inline edit a custom time field

I know SF does not currently support inline editing for custom time/date fields, but I was curious if anyone has found any workarounds for this? 

My Org currently uses a custom time field (Estimated Start Time) to plan events and our users would like to be able to mass edit these times easily. They can edit record by record but it's very time consuming. 

Thanks for any and all input from the community.