diff --git a/include/haproxy/clock.h b/include/haproxy/clock.h
index 22bb2c947..a6f7cd2db 100644
--- a/include/haproxy/clock.h
+++ b/include/haproxy/clock.h
@@ -26,6 +26,7 @@
 #include <haproxy/api.h>
 
 extern struct timeval              start_date;    /* the process's start date in wall-clock time */
+extern struct timeval              start_time;    /* the process's start date in internal monotonic time */
 extern volatile ullong             global_now;    /* common monotonic date between all threads (32:32) */
 
 extern THREAD_LOCAL struct timeval now;           /* internal monotonic date derived from real clock */
diff --git a/src/activity.c b/src/activity.c
index 5ee5fbb10..010fd313a 100644
--- a/src/activity.c
+++ b/src/activity.c
@@ -1083,7 +1083,7 @@ static int cli_io_handler_show_activity(struct appctx *appctx)
 	} while (0)
 
 	/* retrieve uptime */
-	tv_remain(&start_date, &now, &up);
+	tv_remain(&start_time, &now, &up);
 
 	chunk_appendf(&trash, "thread_id: %u (%u..%u)\n", tid + 1, 1, global.nbthread);
 	chunk_appendf(&trash, "date_now: %lu.%06lu\n", (ulong)now.tv_sec, (ulong)now.tv_usec);
diff --git a/src/clock.c b/src/clock.c
index 3d96c31d0..75d2293ac 100644
--- a/src/clock.c
+++ b/src/clock.c
@@ -27,6 +27,7 @@
 #include <haproxy/tools.h>
 
 struct timeval                   start_date;      /* the process's start date in wall-clock time */
+struct timeval                   start_time;      /* the process's start date in internal monotonic time */
 volatile ullong                  global_now;      /* common monotonic date between all threads (32:32) */
 volatile uint                    global_now_ms;   /* common monotonic date in milliseconds (may wrap) */
 
diff --git a/src/haproxy.c b/src/haproxy.c
index e03b2388e..f7e0b34ac 100644
--- a/src/haproxy.c
+++ b/src/haproxy.c
@@ -1504,7 +1504,8 @@ static void init_early(int argc, char **argv)
 	/* initialize date, time, and pid */
 	tzset();
 	clock_init_process_date();
-	start_date = now;
+	start_date = date;
+	start_time = now;
 	pid = getpid();
 
 	/* Set local host name and adjust some environment variables.
diff --git a/src/stats.c b/src/stats.c
index 960fcbf5f..9866a5474 100644
--- a/src/stats.c
+++ b/src/stats.c
@@ -4613,7 +4613,7 @@ int stats_fill_info(struct field *info, int len, uint flags)
 	}
 	glob_out_b32 *= 32; // values are 32-byte units
 
-	tv_remain(&start_date, &now, &up);
+	tv_remain(&start_time, &now, &up);
 
 	if (len < INF_TOTAL_FIELDS)
 		return 0;
@@ -4635,7 +4635,7 @@ int stats_fill_info(struct field *info, int len, uint flags)
 	chunk_appendf(out, "%ud %uh%02um%02us", (uint)up.tv_sec / 86400, ((uint)up.tv_sec % 86400) / 3600, ((uint)up.tv_sec % 3600) / 60, ((uint)up.tv_sec % 60));
 
 	info[INF_UPTIME_SEC]                     = (flags & STAT_USE_FLOAT) ? mkf_flt(FN_DURATION, up.tv_sec + up.tv_usec / 1000000.0) : mkf_u32(FN_DURATION, up.tv_sec);
-	info[INF_START_TIME_SEC]                 = (flags & STAT_USE_FLOAT) ? mkf_flt(FN_DURATION, start_date.tv_sec + start_date.tv_usec / 1000000.0) : mkf_u32(FN_DURATION, start_date.tv_sec);
+	info[INF_START_TIME_SEC]                 = (flags & STAT_USE_FLOAT) ? mkf_flt(FN_DURATION, start_time.tv_sec + start_time.tv_usec / 1000000.0) : mkf_u32(FN_DURATION, start_time.tv_sec);
 	info[INF_MEMMAX_MB]                      = mkf_u32(FO_CONFIG|FN_LIMIT, global.rlimit_memmax);
 	info[INF_MEMMAX_BYTES]                   = mkf_u32(FO_CONFIG|FN_LIMIT, global.rlimit_memmax * 1048576L);
 	info[INF_POOL_ALLOC_MB]                  = mkf_u32(0, (unsigned)(pool_total_allocated() / 1048576L));