I am trying to find a trend in win rates depending on the time of day but unfortunately I just don't have enough data. I am looking for bots playing around rank 7 and up. The last two or three months should be sufficient.

If you use Hearthstone Deck Tracker, you can use this plugin to export your specific stats into excel file and I can go from there. Feel free to delete any identifying information such as the Opponent Name column or your deck name column....

You can email your excel file to johnnie.fruits@gmail.com or post a dropbox link. I am unaware of other popular upload methods but whatever works for you.
Please also include your timezone. This is very important since HDT will export according to your local machine