Twitter Schedule Tweets (without 3rd party tools)

Login to http://ads.twitter.com/

Navigate to the Creatives" > Tweets at the top bar. If you only see Analytics but not Creatives, you need to add a credit card (no spending is required).

• Click on Account Name at top-right corner and click Add new payment method.
• Key in Card Info and Billing Address, click Save.
• Campaigns, Creatives and Tools tab will appear at the top bar.

At Creatives" > Tweets, click New Tweet.

After writing the tweet, uncheck Promoted-only, click the Down Arrow icon next to Tweet, and select Schedule.