From 2c1484587fa2df79b042bcd35d0eac8665e6c4d3 Mon Sep 17 00:00:00 2001
From: tastytea <tastytea@tastytea.de>
Date: Sat, 14 Aug 2021 18:59:59 +0200
Subject: [PATCH] statustime: Only update when the minute changes.

---
 statustime.cpp | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/statustime.cpp b/statustime.cpp
index d62fd8b..c2e7e89 100755
--- a/statustime.cpp
+++ b/statustime.cpp
@@ -13,6 +13,8 @@ int main()
 {
     using fmt::format;
     using std::cout;
+    using clock = std::chrono::system_clock;
+    using std::chrono::minutes;
     using namespace std::chrono_literals;
 
     // Set explicitly, because LC_TIME is en_DK.UTF-8.
@@ -22,12 +24,15 @@ int main()
     {
         while (true)
         {
+            const auto now{clock::now()};
             cout << format(R"(<b><span color="orange">{0:%A}</span></b>, )"
                            R"({0:%Y-%m-%d} )"
                            R"(<span color="lightcyan">{0:%H:%M}</span>)",
-                           std::chrono::system_clock::now())
+                           now)
                  << std::endl; // NOTE: Don't forget that we need to flush! 😊
-            std::this_thread::sleep_for(1s);
+
+            const auto next_minute{std::chrono::floor<minutes>(now + 1min)};
+            std::this_thread::sleep_until(next_minute);
         }
     }
     catch (const std::exception &e)