Whentotweet has closed
Finally, the changes in the twitter API has gotten the best of us. Whentotweet has been around since 2010 but we are no longer able to keep up with the recent API changes from Twitter and have therefore decided to close the service. Over 50k of you have used Whentotweet over the years - a big thank you to all of you!
ps. the best time to tweet is around 2pm PST