Does the Toppy understand the start and end of BST?
Yes – both the TF5810 and the TF5800 know about the change to and from summer time. Depending on the firmware version you are using, it may update the time automatically, or wait until the first time you turn it on after the clock change and then change automatically. However, if you have a very old TF5800 with the original firmware, version 5.11.52, it won’t change automatically, and you should instead install the AutoDST TAP.