I offer you today the BTC halving countdown updated in real-time on your charts
I inspired myself greatly from the gentleman @everget's script LTC halving countdown below
The countdown date is coming from that source www.bitcoinblockhalf.com.
This is edited version which author wrote this indicator already.
-Ready for creating alerts
-You have to use 15 minutes chart
-It provides alert which will warn you or you may automatically close your position with Auto4Mex bot, it will creates alert with predicted side of the book (long funding or short funding) before of the 15 minutes.