diff -r d869ff924c19 -r e714005f3e9d src/main.cpp
--- a/src/main.cpp	Sat Feb 01 14:11:46 2025 +0100
+++ b/src/main.cpp	Sat Feb 01 14:19:36 2025 +0100
@@ -34,8 +34,7 @@
 #include <cstring>
 #include <cerrno>
 
-namespace chrono = std::chrono;
-using chrono::operator ""d;
+using namespace std::chrono;
 
 static void print_help() {
     fputs(
@@ -179,14 +178,13 @@
     }
 
     // determine our reporting range
-    int year;
-    if (settings.year == fm::settings_current_year) {
-        year = static_cast<int>(chrono::year_month_day{chrono::floor<chrono::days>(chrono::system_clock::now())}.year());
-    } else {
-        year = settings.year;
-    }
-    chrono::year_month_day report_begin{chrono::year{year}, chrono::January, 1d};
-    chrono::year_month_day report_end{chrono::year{year}, chrono::December, 31d};
+    year report_year{
+        settings.year == fm::settings_current_year
+            ? year_month_day{floor<days>(system_clock::now())}.year()
+            : year{settings.year}
+    };
+    year_month_day report_begin{report_year, January, 1d};
+    year_month_day report_end{report_year, December, 31d};
 
     // read the commit logs
     fm::heatmap heatmap;
@@ -198,7 +196,7 @@
         if (repo.type == fm::HG) {
             proc.setbin(settings.hg);
             if (proc.exec_log({"log",
-                "--date", std::format("{0}-01-01 to {0}-12-31", year),
+                "--date", std::format("{0}-01-01 to {0}-12-31", report_year),
                 "--template", "{author}#{date|shortdate}\n"})) {
                 fprintf(stderr, "Reading commit log for repo '%s' failed!\n", repo.path.c_str());
                 return EXIT_FAILURE;
@@ -207,8 +205,8 @@
         } else {
             proc.setbin(settings.git);
             if (proc.exec_log({"log",
-                "--since", std::format("{0}-01-01", year),
-                "--until", std::format("{0}-12-31", year),
+                "--since", std::format("{0}-01-01", report_year),
+                "--until", std::format("{0}-12-31", report_year),
                 "--format=tformat:%an <%ae>#%cs"})) {
                 fprintf(stderr, "Reading commit log for repo '%s' failed!\n", repo.path.c_str());
                 return EXIT_FAILURE;
@@ -222,13 +220,13 @@
         html::h1(repo);
         for (const auto &[author, entries] : authors) {
             html::h2(author);
-            html::table_begin(year);
+            html::table_begin(report_year);
 
             // initialize counters
             unsigned column = 0, row = 0;
 
             // initialize first day (which must be a Monday, possibly the year before)
-            chrono::sys_days day_to_check = chrono::January / chrono::Monday[1] / chrono::year{year};
+            sys_days day_to_check = January / Monday[1] / report_year;
 
             // remember the starting point
             auto start = day_to_check;
@@ -240,7 +238,7 @@
                 // check if we need to add blank cells
                 while (day_to_check < report_begin) {
                     html::cell_out_of_range();
-                    day_to_check += chrono::days{7};
+                    day_to_check += days{7};
                     column++;
                 }
 
@@ -253,7 +251,7 @@
                         html::cell(day_to_check, find_result->second);
                     }
                     // advance seven days and one column
-                    day_to_check += chrono::days{7};
+                    day_to_check += days{7};
                     column++;
                 }
                 // fill remaining columns with blank cells
@@ -268,7 +266,7 @@
                 if (++row == 7) break;
 
                 // otherwise, advance the starting point by one day, reset, and begin a new row
-                start += chrono::days{1};
+                start += days{1};
                 day_to_check = start;
                 column =0;
             }