diff --git a/chip/npcx/system.c b/chip/npcx/system.c
index 46547ff737..0411892214 100644
--- a/chip/npcx/system.c
+++ b/chip/npcx/system.c
@@ -762,6 +762,17 @@ DECLARE_HOST_COMMAND(EC_CMD_RTC_SET_VALUE,
 		system_rtc_set_value,
 		EC_VER_MASK(0));
 
+static int system_rtc_set_alarm(struct host_cmd_handler_args *args)
+{
+	const struct ec_params_rtc *p = args->params;
+
+	system_set_rtc_alarm(p->time, 0);
+	return EC_RES_SUCCESS;
+}
+DECLARE_HOST_COMMAND(EC_CMD_RTC_SET_ALARM,
+		system_rtc_set_alarm,
+		EC_VER_MASK(0));
+
 #ifdef CONFIG_EXTERNAL_STORAGE
 void system_jump_to_booter(void)
 {
diff --git a/util/ectool.c b/util/ectool.c
index f5787efcf2..a1210466f5 100644
--- a/util/ectool.c
+++ b/util/ectool.c
@@ -187,6 +187,8 @@ const char help_str[] =
 	"      Reads a pattern from the EC via LPC\n"
 	"  reboot_ec <RO|RW|cold|hibernate|disable-jump> [at-shutdown]\n"
 	"      Reboot EC to RO or RW\n"
+	"  rtcalarm <sec>\n"
+	"      Set real-time clock alarm to go off in <sec> seconds\n"
 	"  rtcget\n"
 	"      Print real-time clock\n"
 	"  rtcset <time>\n"
@@ -5962,6 +5964,30 @@ int cmd_rtc_set(int argc, char *argv[])
 	return 0;
 }
 
+int cmd_rtc_set_alarm(int argc, char *argv[])
+{
+	struct ec_params_rtc p;
+	char *e;
+	int rv;
+
+	if (argc != 2) {
+		fprintf(stderr, "Usage: %s <sec>\n", argv[0]);
+		return -1;
+	}
+	p.time = strtol(argv[1], &e, 0);
+	if (e && *e) {
+		fprintf(stderr, "Bad time.\n");
+		return -1;
+	}
+
+	rv = ec_command(EC_CMD_RTC_SET_ALARM, 0, &p, sizeof(p), NULL, 0);
+	if (rv < 0)
+		return rv;
+
+	printf("Alarm Set to go off in %d secs.\n", p.time);
+	return 0;
+}
+
 int cmd_console(int argc, char *argv[])
 {
 	char *out = (char *)ec_inbuf;
@@ -6736,6 +6762,7 @@ const struct command commands[] = {
 	{"pwmsetduty", cmd_pwm_set_duty},
 	{"readtest", cmd_read_test},
 	{"reboot_ec", cmd_reboot_ec},
+	{"rtcalarm", cmd_rtc_set_alarm},
 	{"rtcget", cmd_rtc_get},
 	{"rtcset", cmd_rtc_set},
 	{"rwhashpd", cmd_rw_hash_pd},