diff --git a/lib/eventlog/parse_json.c b/lib/eventlog/parse_json.c
index d9da66106b..381aaec15d 100644
--- a/lib/eventlog/parse_json.c
+++ b/lib/eventlog/parse_json.c
@@ -382,11 +382,11 @@ json_store_timespec(struct json_item *item, struct timespec *ts)
 	if (item->type != JSON_NUMBER)
 	    continue;
 	if (strcmp(item->name, "seconds") == 0) {
-	    ts->tv_sec = item->u.number;
+	    ts->tv_sec = (time_t)item->u.number;
 	    continue;
 	}
 	if (strcmp(item->name, "nanoseconds") == 0) {
-	    ts->tv_nsec = item->u.number;
+	    ts->tv_nsec = (long)item->u.number;
 	    continue;
 	}
     }
diff --git a/lib/iolog/iolog_legacy.c b/lib/iolog/iolog_legacy.c
index 7119782ba6..5ebe537d2d 100644
--- a/lib/iolog/iolog_legacy.c
+++ b/lib/iolog/iolog_legacy.c
@@ -84,7 +84,8 @@ iolog_parse_loginfo_legacy(FILE *fp, const char *iolog_dir,
 	goto done;
     }
     *ep = '\0';
-    evlog->submit_time.tv_sec = sudo_strtonum(cp, 0, TIME_T_MAX, &errstr);
+    evlog->submit_time.tv_sec =
+	(time_t)sudo_strtonum(cp, 0, TIME_T_MAX, &errstr);
     if (errstr != NULL) {
 	sudo_warn(U_("%s: time stamp %s: %s"), iolog_dir, cp, errstr);
 	goto done;
diff --git a/lib/iolog/iolog_timing.c b/lib/iolog/iolog_timing.c
index 3c519e974a..c933b4ca87 100644
--- a/lib/iolog/iolog_timing.c
+++ b/lib/iolog/iolog_timing.c
@@ -105,7 +105,7 @@ iolog_parse_delay(const char *cp, struct timespec *delay,
     }
     memcpy(numbuf, cp, len);
     numbuf[len] = '\0';
-    delay->tv_sec = sudo_strtonum(numbuf, 0, TIME_T_MAX, &errstr);
+    delay->tv_sec = (time_t)sudo_strtonum(numbuf, 0, TIME_T_MAX, &errstr);
     if (errstr != NULL) {
 	sudo_debug_printf(SUDO_DEBUG_ERROR|SUDO_DEBUG_LINENO,
 	    "%s: number of seconds is %s", numbuf, errstr);
diff --git a/logsrvd/iolog_writer.c b/logsrvd/iolog_writer.c
index c9361ff56a..b65428cf9d 100644
--- a/logsrvd/iolog_writer.c
+++ b/logsrvd/iolog_writer.c
@@ -150,8 +150,8 @@ evlog_new(TimeSpec *submit_time, InfoMessage **info_msgs, size_t infolen,
 
     /* Submit time. */
     if (submit_time != NULL) {
-	evlog->submit_time.tv_sec = submit_time->tv_sec;
-	evlog->submit_time.tv_nsec = submit_time->tv_nsec;
+	evlog->submit_time.tv_sec = (time_t)submit_time->tv_sec;
+	evlog->submit_time.tv_nsec = (long)submit_time->tv_nsec;
     }
 
     /* Default values */
@@ -891,8 +891,8 @@ update_elapsed_time(TimeSpec *delta, struct timespec *elapsed)
     debug_decl(update_elapsed_time, SUDO_DEBUG_UTIL);
 
     /* Cannot use timespecadd since msg doesn't use struct timespec. */
-    elapsed->tv_sec += delta->tv_sec;
-    elapsed->tv_nsec += delta->tv_nsec;
+    elapsed->tv_sec += (time_t)delta->tv_sec;
+    elapsed->tv_nsec += (long)delta->tv_nsec;
     while (elapsed->tv_nsec >= 1000000000) {
 	elapsed->tv_sec++;
 	elapsed->tv_nsec -= 1000000000;
diff --git a/logsrvd/logsrvd_conf.c b/logsrvd/logsrvd_conf.c
index 9a28c33f2e..ed125cd5c3 100644
--- a/logsrvd/logsrvd_conf.c
+++ b/logsrvd/logsrvd_conf.c
@@ -588,7 +588,7 @@ cb_server_timeout(struct logsrvd_config *config, const char *str, size_t offset)
     const char *errstr;
     debug_decl(cb_server_timeout, SUDO_DEBUG_UTIL);
 
-    timeout = sudo_strtonum(str, 0, TIME_T_MAX, &errstr);
+    timeout = (time_t)sudo_strtonum(str, 0, TIME_T_MAX, &errstr);
     if (errstr != NULL)
 	debug_return_bool(false);
 
@@ -794,7 +794,7 @@ cb_relay_timeout(struct logsrvd_config *config, const char *str, size_t offset)
     const char *errstr;
     debug_decl(cb_relay_timeout, SUDO_DEBUG_UTIL);
 
-    timeout = sudo_strtonum(str, 0, TIME_T_MAX, &errstr);
+    timeout = (time_t)sudo_strtonum(str, 0, TIME_T_MAX, &errstr);
     if (errstr != NULL)
 	debug_return_bool(false);
 
@@ -810,7 +810,7 @@ cb_relay_connect_timeout(struct logsrvd_config *config, const char *str, size_t
     const char *errstr;
     debug_decl(cb_relay_connect_timeout, SUDO_DEBUG_UTIL);
 
-    timeout = sudo_strtonum(str, 0, TIME_T_MAX, &errstr);
+    timeout = (time_t)sudo_strtonum(str, 0, TIME_T_MAX, &errstr);
     if (errstr != NULL)
 	debug_return_bool(false);
 
@@ -843,7 +843,7 @@ cb_retry_interval(struct logsrvd_config *config, const char *str, size_t offset)
     const char *errstr;
     debug_decl(cb_retry_interval, SUDO_DEBUG_UTIL);
 
-    interval = sudo_strtonum(str, 0, TIME_T_MAX, &errstr);
+    interval = (time_t)sudo_strtonum(str, 0, TIME_T_MAX, &errstr);
     if (errstr != NULL)
 	debug_return_bool(false);
 
diff --git a/logsrvd/logsrvd_journal.c b/logsrvd/logsrvd_journal.c
index bb5301d5a4..e4d2083f16 100644
--- a/logsrvd/logsrvd_journal.c
+++ b/logsrvd/logsrvd_journal.c
@@ -443,8 +443,8 @@ journal_restart(RestartMessage *msg, uint8_t *buf, size_t buflen,
     }
 
     /* Seek forward to resume point. */
-    target.tv_sec = msg->resume_point->tv_sec;
-    target.tv_nsec = msg->resume_point->tv_nsec;
+    target.tv_sec = (time_t)msg->resume_point->tv_sec;
+    target.tv_nsec = (long)msg->resume_point->tv_nsec;
     if (!journal_seek(&target, closure)) {
 	sudo_warn(U_("unable to seek to [%lld, %ld] in journal file %s"),
 	    (long long)target.tv_sec, target.tv_nsec, journal_path);
diff --git a/logsrvd/logsrvd_local.c b/logsrvd/logsrvd_local.c
index 821f6129b7..8096d97dde 100644
--- a/logsrvd/logsrvd_local.c
+++ b/logsrvd/logsrvd_local.c
@@ -404,8 +404,8 @@ store_exit_local(ExitMessage *msg, uint8_t *buf, size_t len,
     debug_decl(store_exit_local, SUDO_DEBUG_UTIL);
 
     if (msg->run_time != NULL) {
-	evlog->run_time.tv_sec = msg->run_time->tv_sec;
-	evlog->run_time.tv_nsec = msg->run_time->tv_nsec;
+	evlog->run_time.tv_sec = (time_t)msg->run_time->tv_sec;
+	evlog->run_time.tv_nsec = (long)msg->run_time->tv_nsec;
     }
     evlog->exit_value = msg->exit_value;
     if (msg->signal != NULL && msg->signal[0] != '\0') {
@@ -459,8 +459,8 @@ store_restart_local(RestartMessage *msg, uint8_t *buf, size_t len,
     int iofd;
     debug_decl(store_restart_local, SUDO_DEBUG_UTIL);
 
-    target.tv_sec = msg->resume_point->tv_sec;
-    target.tv_nsec = msg->resume_point->tv_nsec;
+    target.tv_sec = (time_t)msg->resume_point->tv_sec;
+    target.tv_nsec = (long)msg->resume_point->tv_nsec;
 
     /* We must allocate closure->evlog for iolog_path. */
     closure->evlog = calloc(1, sizeof(*closure->evlog));
@@ -544,8 +544,8 @@ store_alert_local(AlertMessage *msg, uint8_t *buf, size_t len,
 	if (closure->evlog == NULL)
 	    closure->evlog = evlog;
     }
-    alert_time.tv_sec = msg->alert_time->tv_sec;
-    alert_time.tv_nsec = msg->alert_time->tv_nsec;
+    alert_time.tv_sec = (time_t)msg->alert_time->tv_sec;
+    alert_time.tv_nsec = (long)msg->alert_time->tv_nsec;
 
     if (!eventlog_alert(evlog, 0, &alert_time, msg->reason, NULL)) {
 	closure->errstr = _("error logging alert event");
diff --git a/logsrvd/sendlog.c b/logsrvd/sendlog.c
index f05998fb64..888f46d21b 100644
--- a/logsrvd/sendlog.c
+++ b/logsrvd/sendlog.c
@@ -1142,8 +1142,8 @@ handle_commit_point(TimeSpec *commit_point, struct client_closure *closure)
 
     sudo_debug_printf(SUDO_DEBUG_INFO, "%s: commit point: [%lld, %d]",
 	__func__, (long long)commit_point->tv_sec, commit_point->tv_nsec);
-    closure->committed.tv_sec = commit_point->tv_sec;
-    closure->committed.tv_nsec = commit_point->tv_nsec;
+    closure->committed.tv_sec = (time_t)commit_point->tv_sec;
+    closure->committed.tv_nsec = (long)commit_point->tv_nsec;
 
     debug_return_bool(true);
 }
@@ -1518,14 +1518,14 @@ parse_timespec(struct timespec *ts, char *strval)
 	*nsecstr++ = '\0';
 
     ts->tv_nsec = 0;
-    ts->tv_sec = sudo_strtonum(strval, 0, TIME_T_MAX, &errstr);
+    ts->tv_sec = (time_t)sudo_strtonum(strval, 0, TIME_T_MAX, &errstr);
     if (errstr != NULL) {
 	sudo_warnx(U_("%s: %s"), strval, U_(errstr));
 	debug_return_bool(false);
     }
 
     if (nsecstr != NULL) {
-	ts->tv_nsec = sudo_strtonum(nsecstr, 0, LONG_MAX, &errstr);
+	ts->tv_nsec = (long)sudo_strtonum(nsecstr, 0, LONG_MAX, &errstr);
 	if (errstr != NULL) {
 	    sudo_warnx(U_("%s: %s"), nsecstr, U_(errstr));
 	    debug_return_bool(false);
diff --git a/plugins/sudoers/defaults.c b/plugins/sudoers/defaults.c
index 3e7be03539..8b8df4d0bb 100644
--- a/plugins/sudoers/defaults.c
+++ b/plugins/sudoers/defaults.c
@@ -999,7 +999,7 @@ store_timespec(const char *str, struct sudo_defs_types *def)
 		ts.tv_sec++;
 		nsec -= 1000000000;
 	    }
-	    ts.tv_nsec = nsec;
+	    ts.tv_nsec = (long)nsec;
 	}
     }
     if (sign == '-') {
diff --git a/plugins/sudoers/iolog.c b/plugins/sudoers/iolog.c
index cddc18d24a..5539fa40d6 100644
--- a/plugins/sudoers/iolog.c
+++ b/plugins/sudoers/iolog.c
@@ -498,7 +498,7 @@ iolog_deserialize_info(struct log_details *details, char * const user_info[],
 		continue;
 	    }
 	    if (strncmp(*cur, "log_server_timeout=", sizeof("log_server_timeout=") - 1) == 0) {
-		details->server_timeout.tv_sec =
+		details->server_timeout.tv_sec = (time_t)
 		    sudo_strtonum(*cur + sizeof("log_server_timeout=") - 1, 1,
 		    TIME_T_MAX, NULL);
 		continue;
diff --git a/plugins/sudoers/log_client.c b/plugins/sudoers/log_client.c
index 7f72af258c..ab97322f57 100644
--- a/plugins/sudoers/log_client.c
+++ b/plugins/sudoers/log_client.c
@@ -1513,8 +1513,8 @@ handle_commit_point(TimeSpec *commit_point, struct client_closure *closure)
 	debug_return_bool(false);
     }
 
-    closure->committed.tv_sec = commit_point->tv_sec;
-    closure->committed.tv_nsec = commit_point->tv_nsec;
+    closure->committed.tv_sec = (time_t)commit_point->tv_sec;
+    closure->committed.tv_nsec = (long)commit_point->tv_nsec;
     sudo_debug_printf(SUDO_DEBUG_INFO,
 	"%s: received [%lld, %d], elapsed [%lld, %ld], committed [%lld, %ld]",
 	__func__, (long long)commit_point->tv_sec, commit_point->tv_nsec,