hexadecimal clock btw ... user can set custom abitrary snooze interval (up to 16 bits. due to modular arithmetic overflow values wrap and behave as expected)if they wish which is saved in EEPROM preverving the settings even if power is interupted, this feature is completely optional via a jumper, default snooze interval is about 5 min. 1 day = 16 bit, i.e -0x0000 is midnight, 0x8000 is noon.