diff --git a/mw_main.c b/mw_main.c
index d391048..b1e9d15 100644
--- a/mw_main.c
+++ b/mw_main.c
@@ -587,6 +587,14 @@ void process_cmd(char *cmdline, int clinep, mwdata_t *mwdata)
 		mdata[0] = 0;
 		mw_nval_operation(&mwdata->mwdevice, MW_NVAL_OPERATION_READ, MW_NVAL_TIME_FORMAT, 1, mdata);
 	}
+	if (strncmp(cmdline, "sdm", 3) == 0) {
+		mdata[0] = MW_RTC_DATE_DDMM;
+		mw_nval_operation(&mwdata->mwdevice, MW_NVAL_OPERATION_WRITE, MW_NVAL_DATE_FORMAT, 1, mdata);
+	}
+	if (strncmp(cmdline, "gdm", 3) == 0) {
+		mdata[0] = 0;
+		mw_nval_operation(&mwdata->mwdevice, MW_NVAL_OPERATION_READ, MW_NVAL_TIME_FORMAT, 1, mdata);
+	}
 }