From 731230315bafc866d797b7565ecc4f8e95e238df Mon Sep 17 00:00:00 2001
From: Joe Taylor <joe@princeton.edu>
Date: Sat, 10 Sep 2022 08:39:13 -0400
Subject: [PATCH] Adjust the UTC wrap-around problem to yield time difference
 within +/- 12 hours.

---
 widgets/mainwindow.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/widgets/mainwindow.cpp b/widgets/mainwindow.cpp
index 75e8e9fe4..1fd0f2436 100644
--- a/widgets/mainwindow.cpp
+++ b/widgets/mainwindow.cpp
@@ -1635,6 +1635,7 @@ void MainWindow::dataSink(qint64 frames)
         int nsec=((n/10000)*3600) + (((n/100)%100)*60) + (n%100);
         if(!m_echoRunning) m_echoSec0=nsec;
         n=(nsec-m_echoSec0 + 864000)%86400;
+        if(n>43200) n-=86400;
         m_echoRunning=true;
         QString t;
         t = t.asprintf("%6d  %5.2f %7d %7.1f %7d %7d %7d %7.1f %7.1f",n,xlevel,