Print UTC suffix when outputting time over serial

We keep time in UTC and this might help to remember that when checking
if the time is correct.

Signed-off-by: Florian Pritz <bluewind@xinu.at>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/main.cpp b/src/main.cpp
index 8058f46..319c024 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -205,7 +205,7 @@ static void print_time()
 	Serial.print(now.minute(), DEC);
 	Serial.print(':');
 	Serial.print(now.second(), DEC);
-	Serial.println();
+	Serial.println(" UTC");
 }
 
 const byte ERR_CMD = 9;