diff --git a/firmware/hw_layer/mmc_card.cpp b/firmware/hw_layer/mmc_card.cpp
index 1a44f7d157..4f6641d808 100644
--- a/firmware/hw_layer/mmc_card.cpp
+++ b/firmware/hw_layer/mmc_card.cpp
@@ -52,9 +52,9 @@ static int totalSyncCounter = 0;
 
 #define LOG_INDEX_FILENAME "index.txt"
 
-#define RUSEFI_LOG_PREFIX "rus"
-#define PREFIX_LEN 3
-#define SHORT_TIME_LEN 11
+#define RUSEFI_LOG_PREFIX "rusefi_"
+#define PREFIX_LEN 7
+#define SHORT_TIME_LEN 13
 
 #define LS_RESPONSE "ls_result"
 #define FILE_LIST_MAX_COUNT 20
diff --git a/firmware/hw_layer/rtc_helper.cpp b/firmware/hw_layer/rtc_helper.cpp
index 45d0ecd503..c2a511ddd9 100644
--- a/firmware/hw_layer/rtc_helper.cpp
+++ b/firmware/hw_layer/rtc_helper.cpp
@@ -86,7 +86,7 @@ static void put2(int offset, char *lcd_str, int value) {
  */
 bool dateToStringShort(char *lcd_str) {
 #if EFI_RTC
-	strcpy(lcd_str, "0000_000000\0");
+	strcpy(lcd_str, "000000_000000\0");
 	struct tm timp;
 	date_get_tm(&timp);
 	if (timp.tm_year < 116 || timp.tm_year > 130) {
@@ -94,11 +94,14 @@ bool dateToStringShort(char *lcd_str) {
 		lcd_str[0] = 0;
 		return false;
 	}
-	put2(0, lcd_str, timp.tm_mon + 1); // months since January	0-11
-	put2(2, lcd_str, timp.tm_mday); // day of the month	1-31
-	put2(5, lcd_str, timp.tm_hour); // hours since midnight	0-23
-	put2(7, lcd_str, timp.tm_min);
-	put2(9, lcd_str, timp.tm_sec);
+
+	put2(0, lcd_str, timp.tm_year % 100); // Years since 1900 - format as just the last two digits
+	put2(2, lcd_str, timp.tm_mon + 1);     // months since January	0-11
+	put2(4, lcd_str, timp.tm_mday);        // day of the month	1-31
+
+	put2(7, lcd_str, timp.tm_hour);        // hours since midnight	0-23
+	put2(9, lcd_str, timp.tm_min);        // Minutes
+	put2(11, lcd_str, timp.tm_sec);        // seconds
 
 	return true;
 #else