diff --git a/sys/dev/efidev/efidev.c b/sys/dev/efidev/efidev.c
--- a/sys/dev/efidev/efidev.c
+++ b/sys/dev/efidev/efidev.c
@@ -67,6 +67,20 @@
 		error = efi_set_time(tm);
 		break;
 	}
+	case EFIIOC_GET_WAKETIME:
+	{
+		struct efi_waketime_ioc *wt = (struct efi_waketime_ioc *)addr;
+
+		error = efi_get_waketime(&wt->enabled, &wt->pending, &wt->waketime);
+		break;
+	}
+	case EFIIOC_SET_WAKETIME:
+	{
+		struct efi_waketime_ioc *wt = (struct efi_waketime_ioc *)addr;
+
+		error = efi_set_waketime(wt->enabled, &wt->waketime);
+		break;
+	}
 	case EFIIOC_VAR_GET:
 	{
 		struct efi_var_ioc *ev = (struct efi_var_ioc *)addr;
diff --git a/sys/dev/efidev/efirt.c b/sys/dev/efidev/efirt.c
--- a/sys/dev/efidev/efirt.c
+++ b/sys/dev/efidev/efirt.c
@@ -439,6 +439,51 @@
 	return (error);
 }
 
+int
+efi_get_waketime(uint8_t* enabled, uint8_t* pending, struct efi_tm *tm)
+{
+	struct efirt_callinfo ec;
+	int error;
+
+	if (efi_runtime == NULL)
+		return (ENXIO);
+
+	EFI_TIME_LOCK();
+	bzero(&ec, sizeof(ec));
+	ec.ec_name = "rt_getwaketime";
+	ec.ec_argcnt = 3;
+	ec.ec_arg1 = (uintptr_t)enabled;
+	ec.ec_arg2 = (uintptr_t)pending;
+	ec.ec_arg3 = (uintptr_t)tm;
+	ec.ec_fptr = EFI_RT_METHOD_PA(rt_getwaketime);
+	error = efi_call(&ec);
+	EFI_TIME_UNLOCK();
+
+	return (error);
+}
+
+int
+efi_set_waketime(uint8_t enable, struct efi_tm *tm)
+{
+	struct efirt_callinfo ec;
+	int error;
+
+	if (efi_runtime == NULL)
+		return (ENXIO);
+
+	EFI_TIME_LOCK();
+	bzero(&ec, sizeof(ec));
+	ec.ec_name = "rt_setwaketime";
+	ec.ec_argcnt = 2;
+	ec.ec_arg1 = (uintptr_t)enable;
+	ec.ec_arg2 = (uintptr_t)tm;
+	ec.ec_fptr = EFI_RT_METHOD_PA(rt_setwaketime);
+	error = efi_call(&ec);
+	EFI_TIME_UNLOCK();
+
+	return (error);
+}
+
 int
 efi_get_time_capabilities(struct efi_tmcap *tmcap)
 {
diff --git a/sys/sys/efi.h b/sys/sys/efi.h
--- a/sys/sys/efi.h
+++ b/sys/sys/efi.h
@@ -184,6 +184,8 @@
 int efi_rt_ok(void);
 int efi_get_table(struct uuid *uuid, void **ptr);
 int efi_get_time(struct efi_tm *tm);
+int efi_get_waketime(uint8_t* enabled, uint8_t* pending, struct efi_tm *tm);
+int efi_set_waketime(uint8_t enable, struct efi_tm *tm);
 int efi_get_time_capabilities(struct efi_tmcap *tmcap);
 int efi_reset_system(enum efi_reset type);
 int efi_set_time(struct efi_tm *tm);
diff --git a/sys/sys/efiio.h b/sys/sys/efiio.h
--- a/sys/sys/efiio.h
+++ b/sys/sys/efiio.h
@@ -42,10 +42,19 @@
 	size_t datasize;	/* Number of *bytes* in the data */
 };
 
+struct efi_waketime_ioc
+{
+    struct efi_tm	waketime;
+    uint8_t 		enabled;
+    uint8_t 		pending;
+};
+
 #define EFIIOC_GET_TIME		_IOR('E',   2, struct efi_tm)
 #define EFIIOC_SET_TIME		_IOW('E',   3, struct efi_tm)
 #define EFIIOC_VAR_GET		_IOWR('E',  4, struct efi_var_ioc)
 #define EFIIOC_VAR_NEXT		_IOWR('E',  5, struct efi_var_ioc)
 #define EFIIOC_VAR_SET		_IOWR('E',  6, struct efi_var_ioc)
+#define EFIIOC_GET_WAKETIME	_IOR('E',   7, struct efi_waketime_ioc)
+#define EFIIOC_SET_WAKETIME	_IOW('E',   8, struct efi_waketime_ioc)
 
 #endif /* _SYS_EFIIO_H_ */