Mikroe RTC 12 Click measures the passage of time and features the Maxim Integrated DS1343 low-current SPI-configurable real-time clock (RTC). This timekeeping device provides an extremely low standby current permitting longer life from a backup supply source. Its clock/calendar feature provides seconds, minutes, hours, day, date, month, and year information. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either 24-hour or 12-hour format with an AM/PM indicator.