Hi, I made two small backwards incompatible changes to the public api: The dc_datetime_t structure has been extended with a new "timezone" field, containing the UTC offset in seconds. Devices without timezone support will set the field to the special value DC_TIMEZONE_NONE. The hw_{frog,ostc,ostc3}_device_clock() functions have been removed in favor of the new dc_device_timesync() function. Jef