diff --git a/CMakeLists.txt b/CMakeLists.txt
index bfdd61b..2f2bec9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -48,6 +48,9 @@ set(SOURCES
   src/string/memarray.c
   src/string/misc.c
   src/string/naive.c
+  # time
+  src/time/clock.c
+  src/time/functions.c
   # unistd
   src/unistd/files.c
   # fcntl
@@ -70,7 +73,7 @@ target_compile_options(fxlibctest PRIVATE
   -Wall -Wextra -Os -fmacro-prefix-map=${CMAKE_CURRENT_SOURCE_DIR}/src/=)
 target_link_options(fxlibctest PRIVATE -Wl,-Map=map -Wl,--print-memory-usage)
 target_include_directories(fxlibctest PRIVATE include/)
-target_link_libraries(fxlibctest JustUI::JustUI Gint::Gint)
+target_link_libraries(fxlibctest JustUI::JustUI Gint::Gint -lc Gint::Gint)
 
 if("${FXSDK_PLATFORM_LONG}" STREQUAL fx9860G)
   generate_g1a(TARGET fxlibctest OUTPUT "FxLibcT.g1a"
diff --git a/include/ft/all-tests.h b/include/ft/all-tests.h
index 2e8bf78..3eff9cf 100644
--- a/include/ft/all-tests.h
+++ b/include/ft/all-tests.h
@@ -49,6 +49,10 @@ extern ft_test ft_string_strlen;
 extern ft_test ft_string_naive;
 extern ft_test ft_string_strerror;
 
+/* time */
+extern ft_test ft_time_clock;
+extern ft_test ft_time_functions;
+
 /* unistd */
 extern ft_test ft_unistd_simple_write;
 extern ft_test ft_unistd_write_odd;
diff --git a/src/main.c b/src/main.c
index 10b2e79..3be8451 100644
--- a/src/main.c
+++ b/src/main.c
@@ -68,7 +68,11 @@ ft_list headers_libc[] = {
         &ft_string_strerror,
         NULL,
     }},
-    { _("time.h", "<time.h>"), NULL },
+    { _("time.h", "<time.h>"), (ft_test*[]){
+        &ft_time_clock,
+        &ft_time_functions,
+        NULL,
+    }},
     { _("uchar.h", "<uchar.h>"), NULL },
     { _("wchar.h", "<wchar.h>"), NULL },
     { _("wctype.h", "<wctype.h>"), NULL },
diff --git a/src/time/clock.c b/src/time/clock.c
new file mode 100644
index 0000000..f79a6fd
--- /dev/null
+++ b/src/time/clock.c
@@ -0,0 +1,31 @@
+#include <ft/test.h>
+#include <ft/all-tests.h>
+#include <gint/rtc.h>
+#include <time.h>
+
+static void _ft_time_clock(ft_test *t)
+{
+	rtc_time_t rtc;
+	rtc_get_time(&rtc);
+
+	static char const weekday_names[8][3] = {
+		"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "???",
+	};
+	int wday = (rtc.week_day >= 7) ? 7 : rtc.week_day;
+	ft_log(t, "RTC time: %04d-%02d-%02d (%.3s) %02d:%02d:%02d (%d t)\n",
+		rtc.year, rtc.month+1, rtc.month_day, weekday_names[wday],
+		rtc.hours, rtc.minutes, rtc.seconds, rtc.ticks);
+
+	ft_log(t, "rtc_ticks() = %ld\n", rtc_ticks());
+
+	clock_t c = clock();
+	ft_log(t, "clock() = %llu\n", c);
+
+	time_t ti = time(NULL);
+	ft_log(t, "time() = %llu\n", ti);
+}
+
+ft_test ft_time_clock = {
+	.name = "Obtaining time",
+	.function = _ft_time_clock,
+};
diff --git a/src/time/functions.c b/src/time/functions.c
new file mode 100644
index 0000000..4a4b79f
--- /dev/null
+++ b/src/time/functions.c
@@ -0,0 +1,39 @@
+#include <ft/test.h>
+#include <ft/all-tests.h>
+#include <time.h>
+
+static void _ft_time_functions(ft_test *t)
+{
+	time_t t1 = 1638650741;
+	time_t t2 = 1573929834;
+	time_t t3 = 1237432983;
+	time_t t4 = 1839824619;
+
+	/* gmtime() uses mktime() internally, this saves us the need to build
+	   some struct tm's manually */
+	struct tm tm1 = *gmtime(&t1);
+	struct tm tm2 = *gmtime(&t2);
+	struct tm tm3 = *gmtime(&t3);
+	struct tm tm4 = *gmtime(&t4);
+
+	ft_log(t, "%llu:\n  %s", t1, asctime(&tm1));
+	ft_assert(t, !strcmp(asctime(&tm1), "Sat Dec  4 20:45:41 2021\n"));
+	ft_assert(t, mktime(&tm1) == t1);
+
+	ft_log(t, "%llu:\n  %s", t2, asctime(&tm2));
+	ft_assert(t, !strcmp(asctime(&tm2), "Sat Nov 16 18:43:54 2019\n"));
+	ft_assert(t, mktime(&tm2) == t2);
+
+	ft_log(t, "%llu:\n  %s", t3, asctime(&tm3));
+	ft_assert(t, !strcmp(asctime(&tm3), "Thu Mar 19 03:23:03 2009\n"));
+	ft_assert(t, mktime(&tm3) == t3);
+
+	ft_log(t, "%llu:\n  %s", t4, asctime(&tm4));
+	ft_assert(t, !strcmp(asctime(&tm4), "Thu Apr 20 06:23:39 2028\n"));
+	ft_assert(t, mktime(&tm4) == t4);
+}
+
+ft_test ft_time_functions = {
+	.name = "All time functions",
+	.function = _ft_time_functions,
+};
diff --git a/src/widgets/fbar.c b/src/widgets/fbar.c
index bb83da5..60b4cc4 100644
--- a/src/widgets/fbar.c
+++ b/src/widgets/fbar.c
@@ -107,6 +107,8 @@ static int block(int rx, int y, GUNUSED int h, int px, int val, int fg)
 #else
 static int block(int rx, int y, int h, int px, int val, int fg)
 {
+    if(!px) return 0;
+
     drect(rx, y, rx+px-1, y+h-1, fg);
     dprint_opt(rx+px/2, y+2, C_BLACK, C_NONE, DTEXT_CENTER, DTEXT_TOP,
         "%d", val);
diff --git a/src/widgets/flog.c b/src/widgets/flog.c
index c8c3427..9566411 100644
--- a/src/widgets/flog.c
+++ b/src/widgets/flog.c
@@ -111,7 +111,7 @@ static void flog_poly_render(void *l0, int x, int y)
     {
 #ifdef FXCG50
         if(current_line >= l->top && current_line < l->top + l->visible)
-            dprint_opt(x+22, current_y, C_BLACK, C_NONE,
+            dprint_opt(x+22, current_y, C_RGB(16,16,16), C_NONE,
                 DTEXT_RIGHT, DTEXT_TOP, "%d", current_line+1);
 #endif
 
@@ -131,10 +131,6 @@ static void flog_poly_render(void *l0, int x, int y)
         }
 
         if(current_line >= l->top && current_line < l->top + l->visible) {
-#ifdef FXCG50
-            int previous_y = current_y;
-            dline(x+26, previous_y, x+26, current_y-1, C_BLACK);
-#endif
             current_y += l->font->line_height + l->line_spacing;
         }
         current_line++;