Raspberry PICO Mode D'emploi page 73

15.1.1.2 Affichage
from machine import RTC
from utime import sleep
rtc = RTC()
while True:
now = rtc.datetime()
print("{:02d}/{:02d}/{:04d}
sleep(1)
{:02d}:{:02d}:{:02d}".format(now[2],now[1],now[0],now[4],now[5],now[6]))