diff --git a/application.c b/application.c
index 3c7eebd..69e3aa4 100644
--- a/application.c
+++ b/application.c
@@ -462,123 +462,6 @@ static void command_uptime(void* argument)
 	printf("uptime: %u.%02u:%02u:%02u\n", uptime / (24 * 60 * 60), (uptime / (60 * 60)) % 24, (uptime / 60) % 60, uptime % 60);
 }
 
-/** show date and time
- *  @param[in] argument date and time to set
- */
-static void command_datetime(void* argument)
-{
-	char* datetime = (char*)argument; // argument is optional date time
-	const char* days[] = { "??", "Mo", "Tu", "We", "Th", "Fr", "Sa", "Su"}; // the days of the week
-
-	// set date
-	if (datetime) { // date has been provided
-		// parse date
-		const char* malformed = "date and time malformed, expecting YYYY-MM-DD WD HH:MM:SS\n";
-		if (strlen(datetime) != (4 + 1 + 2 + 1 + 2) + 1 + 2 + 1 + (2 + 1 + 2 + 1 + 2)) { // verify date/time is long enough
-			printf(malformed);
-			return;
-		}
-		if (!(isdigit((int8_t)datetime[0]) && isdigit((int8_t)datetime[1]) && isdigit((int8_t)datetime[2]) && isdigit((int8_t)datetime[3]) && \
-			'-' == datetime[4] && \
-			isdigit((int8_t)datetime[5]) && isdigit((int8_t)datetime[6]) && \
-			'-' == datetime[7] && \
-			isdigit((int8_t)datetime[8]) && isdigit((int8_t)datetime[9]) && \
-			' ' == datetime[10] && \
-			isalpha((int8_t)datetime[11]) && isalpha((int8_t)datetime[12]) && \
-			' ' == datetime[13] && \
-			isdigit((int8_t)datetime[14]) && isdigit((int8_t)datetime[15]) && \
-			':' == datetime[16] && \
-			isdigit((int8_t)datetime[17]) && isdigit((int8_t)datetime[18]) && \
-			':' == datetime[19] && \
-			isdigit((int8_t)datetime[20]) && isdigit((int8_t)datetime[21]))) { // verify format (good enough to not fail parsing)
-			printf(malformed);
-			return;
-		}
-		const uint16_t year = strtol(&datetime[0], NULL, 10); // parse year
-		if (year <= 2000 || year > 2099) {
-			puts("year out of range\n");
-			return;
-		}
-		const uint8_t month = strtol(&datetime[5], NULL, 10); // parse month
-		if (month < 1 || month > 12) {
-			puts("month out of range\n");
-			return;
-		}
-		const uint8_t day = strtol(&datetime[8], NULL, 10); // parse day
-		if (day < 1 || day > 31) {
-			puts("day out of range\n");
-			return;
-		}
-		const uint8_t hour = strtol(&datetime[14], NULL, 10); // parse hour
-		if (hour > 24) {
-			puts("hour out of range\n");
-			return;
-		}
-		const uint8_t minute = strtol(&datetime[17], NULL, 10); // parse minutes
-		if (minute > 59) {
-			puts("minute out of range\n");
-			return;
-		}
-		const uint8_t second = strtol(&datetime[30], NULL, 10); // parse seconds
-		if (second > 59) {
-			puts("second out of range\n");
-			return;
-		}
-		uint8_t week_day = 0;
-		for (uint8_t i = 1; i < LENGTH(days) && 0 == week_day; i++) {
-			if (days[i][0] == toupper(datetime[11]) && days[i][1] == tolower(datetime[12])) {
-				week_day = i;
-				break;
-			}
-		}
-		if (0 == week_day) {
-			puts("unknown week day\n");
-			return;
-		}
-		uint32_t date = 0; // to build the date
-		date |= (((year - 2000) / 10) & RTC_DR_YT_MASK) << RTC_DR_YT_SHIFT; // set year tenth
-		date |= (((year - 2000) % 10) & RTC_DR_YU_MASK) << RTC_DR_YU_SHIFT; // set year unit
-		date |= ((month / 10) & RTC_DR_MT_MASK) << RTC_DR_MT_SHIFT; // set month tenth
-		date |= ((month % 10) & RTC_DR_MU_MASK) << RTC_DR_MU_SHIFT; // set month unit
-		date |= ((day / 10) & RTC_DR_DT_MASK) << RTC_DR_DT_SHIFT; // set day tenth
-		date |= ((day % 10) & RTC_DR_DU_MASK) << RTC_DR_DU_SHIFT; // set day unit
-		date |= (week_day & RTC_DR_WDU_MASK) << RTC_DR_WDU_SHIFT; // time day of the week
-		uint32_t time = 0; // to build the time
-		time = 0; // reset time
-		time |= ((hour / 10) & RTC_TR_HT_MASK) << RTC_TR_HT_SHIFT; // set hour tenth
-		time |= ((hour % 10) & RTC_TR_HU_MASK) << RTC_TR_HU_SHIFT; // set hour unit
-		time |= ((minute / 10) & RTC_TR_MNT_MASK) << RTC_TR_MNT_SHIFT; // set minute tenth
-		time |= ((minute % 10) & RTC_TR_MNU_MASK) << RTC_TR_MNU_SHIFT; // set minute unit
-		time |= ((second / 10) & RTC_TR_ST_MASK) << RTC_TR_ST_SHIFT; // set second tenth
-		time |= ((second % 10) & RTC_TR_SU_MASK) << RTC_TR_SU_SHIFT; // set second unit
-		// write date
-		pwr_disable_backup_domain_write_protect(); // disable backup protection so we can set the RTC clock source
-		rtc_unlock(); // enable writing RTC registers
-		RTC_ISR |= RTC_ISR_INIT; // enter initialisation mode
-		while (!(RTC_ISR & RTC_ISR_INITF)); // wait to enter initialisation mode
-		RTC_DR = date; // set date
-		RTC_TR = time; // set time
-		RTC_ISR &= ~RTC_ISR_INIT; // exit initialisation mode
-		rtc_lock(); // protect RTC register against writing
-		pwr_enable_backup_domain_write_protect(); // re-enable protection now that we configured the RTC clock
-	}
-
-	// show date
-	if (!(RTC_ISR & RTC_ISR_INITS)) { // date has not been set yet
-		puts("date/time not initialized\n");
-	} else {
-		rtc_wait_for_synchro(); // wait until date/time is synchronised
-		const uint8_t year = ((RTC_DR >> RTC_DR_YT_SHIFT) & RTC_DR_YT_MASK) * 10 + ((RTC_DR >> RTC_DR_YU_SHIFT) & RTC_DR_YU_MASK); // get year
-		const uint8_t month = ((RTC_DR >> RTC_DR_MT_SHIFT) & RTC_DR_MT_MASK) * 10 + ((RTC_DR >> RTC_DR_MU_SHIFT) & RTC_DR_MU_MASK); // get month
-		const uint8_t day = ((RTC_DR >> RTC_DR_DT_SHIFT) & RTC_DR_DT_MASK) * 10 + ((RTC_DR >> RTC_DR_DU_SHIFT) & RTC_DR_DU_MASK); // get day
-		const uint8_t week_day = ((RTC_DR >> RTC_DR_WDU_SHIFT) & RTC_DR_WDU_MASK); // get week day
-		const uint8_t hour = ((RTC_TR >> RTC_TR_HT_SHIFT) & RTC_TR_HT_MASK) * 10 + ((RTC_TR >> RTC_TR_HU_SHIFT) & RTC_TR_HU_MASK); // get hours
-		const uint8_t minute = ((RTC_TR >> RTC_TR_MNT_SHIFT) & RTC_TR_MNT_MASK) * 10 + ((RTC_TR >> RTC_TR_MNU_SHIFT) & RTC_TR_MNU_MASK); // get minutes
-		const uint8_t second = ((RTC_TR >> RTC_TR_ST_SHIFT) & RTC_TR_ST_MASK) * 10 + ((RTC_TR >> RTC_TR_SU_SHIFT) & RTC_TR_SU_MASK); // get seconds
-		printf("date: 20%02d-%02d-%02d %s %02d:%02d:%02d\n", year, month, day, days[week_day], hour, minute, second);
-	}
-}
-
 /** reset board
  *  @param[in] argument no argument required
  */
@@ -633,14 +516,6 @@ static const struct menu_command_t menu_commands[] = {
 		.argument_description = NULL,
 		.command_handler = &command_uptime,
 	},
-	{
-		.shortcut = 'd',
-		.name = "date",
-		.command_description = "show/set date and time",
-		.argument = MENU_ARGUMENT_STRING,
-		.argument_description = "[YYYY-MM-DD HH:MM:SS]",
-		.command_handler = &command_datetime,
-	},
 	{
 		.shortcut = 'R',
 		.name = "reset_board",