error message

[afedorov28]

I've got the next error message invalid conversion from 'const char*' to 'long int' [-fpermissive]

in the next line

configTime(TIMEZONE.c_str(), NTP_SERVERS);

How can I solve it?

[marcelstoer]

ESP8266 Arduino.h defines configTime() for both POSIX TZ strings (preferred) as well as timezone int and offset seconds (old API).

See https://github.com/esp8266/Arduino/blob/master/cores/esp8266/Arduino.h#L273-L301