How to find time of the tweets or time of recent tweet posted by userid may or maynot related to hashtag

hrsht_sarma · 2012-09-07T06:22:56.000Z

Hey

I am looking forward to find the timestamp of latest tweet posted in order to keep track of time when tweets were posted . Thanks for your help

episod · 2012-09-07T15:29:51.000Z

Tweets have a created_at field attached to them indicating the time they were posted. User objects also have a created_at field attached to them indicating the time the user was created. User objects get embedded within Tweets, so be sure you’re selecting the created_at that belongs to the tweet, not to the user.