The WiPy has an RTC, but it needs initialising on boot (and wakeup from deep sleep too) even without power loss, don't know if that's a limitation of the micro or the RTC or Python or what. So we need a time. I put this problem on the TODO pile and started writing the network code, more specifically parsing HTTP headers
HTTP/1.1 200 OK Date: Sun, 27 Mar 2016 21:36:31 GMT Server: Apache/2.4.7 (Ubuntu) Last-Modified: Sun, 27 Mar 2016 21:30:01 GMT ETag: "94b-52f0e7fb04995" Accept-Ranges: bytes Content-Length: 2379 Keep-Alive: timeout=5, max=100 Connection: Keep-Alive Content-Type: image/pngOh hey, a time! Let's assume it's accurate and use that!
These headers are from Chrome, I worked on HTTP 1.0 rather than take the risk I'd upgrade Apache or tinker with it in the future and find it returning chunked data for some reason which I haven't written support for. I do support keep-alives though, to save valuable milliseconds awake and sending WiFi.