How to Sync RTC with Blynk server time using Blynk.NCP

What is the Blynk.NCP equivalent to

Blynk.sendInternal(“rtc”, “sync”);

so I can sync my device’s RTC (Arduino Uno R4 Wifi) with the Blynk server when connected?

sendInterval doesn’t exist with Blynk.NCP.

Any ideas?
Thanks
James.