It doesn't sync to NTP, but I have a connector on it for a GPS module to get the time. I haven't implemented it yet though. It uses the DHT22 module for temperature and humidity and a DS3231 for a RTC.
I use the Nixie tubes at a fairly conservative current, but since I haven't run it for a long time I'm not sure how long it will last, but it should be years
I need to update the projects from v4 to v5, just haven't done it yet, because v4 works well for my purposes. The only change needed should just be to swap some library symbols and footprints to newer versions in the v5 library.
Dan