diff --git a/lib/asyn-thread.c b/lib/asyn-thread.c
index 7cce01aac..0c5abaefe 100644
--- a/lib/asyn-thread.c
+++ b/lib/asyn-thread.c
@@ -169,7 +169,7 @@ struct thread_sync_data {
 struct thread_data {
   curl_thread_t thread_hnd;
   unsigned int poll_interval;
-  long interval_end;
+  time_t interval_end;
   struct thread_sync_data tsd;
 };
 
@@ -525,7 +525,7 @@ CURLcode Curl_resolver_is_resolved(struct connectdata *conn,
   }
   else {
     /* poll for name lookup done with exponential backoff up to 250ms */
-    long elapsed = Curl_tvdiff(Curl_tvnow(), data->progress.t_startsingle);
+    time_t elapsed = Curl_tvdiff(Curl_tvnow(), data->progress.t_startsingle);
     if(elapsed < 0)
       elapsed = 0;
 
diff --git a/lib/connect.c b/lib/connect.c
index 3df34d94a..d87951c88 100644
--- a/lib/connect.c
+++ b/lib/connect.c
@@ -179,12 +179,12 @@ singleipconnect(struct connectdata *conn,
  *
  * @unittest: 1303
  */
-long Curl_timeleft(struct Curl_easy *data,
-                   struct timeval *nowp,
-                   bool duringconnect)
+time_t Curl_timeleft(struct Curl_easy *data,
+                     struct timeval *nowp,
+                     bool duringconnect)
 {
   int timeout_set = 0;
-  long timeout_ms = duringconnect?DEFAULT_CONNECT_TIMEOUT:0;
+  time_t timeout_ms = duringconnect?DEFAULT_CONNECT_TIMEOUT:0;
   struct timeval now;
 
   /* if a timeout is set, use the most restrictive one */
@@ -722,7 +722,7 @@ CURLcode Curl_is_connected(struct connectdata *conn,
 {
   struct Curl_easy *data = conn->data;
   CURLcode result = CURLE_OK;
-  long allow;
+  time_t allow;
   int error = 0;
   struct timeval now;
   int rc;
@@ -1153,7 +1153,7 @@ CURLcode Curl_connecthost(struct connectdata *conn,  /* context */
   struct timeval before = Curl_tvnow();
   CURLcode result = CURLE_COULDNT_CONNECT;
 
-  long timeout_ms = Curl_timeleft(data, &before, TRUE);
+  time_t timeout_ms = Curl_timeleft(data, &before, TRUE);
 
   if(timeout_ms < 0) {
     /* a precaution, no need to continue if time already is up */
diff --git a/lib/connect.h b/lib/connect.h
index a7cbc9bc2..5e48eb644 100644
--- a/lib/connect.h
+++ b/lib/connect.h
@@ -35,9 +35,9 @@ CURLcode Curl_connecthost(struct connectdata *conn,
 
 /* generic function that returns how much time there's left to run, according
    to the timeouts set */
-long Curl_timeleft(struct Curl_easy *data,
-                   struct timeval *nowp,
-                   bool duringconnect);
+time_t Curl_timeleft(struct Curl_easy *data,
+                     struct timeval *nowp,
+                     bool duringconnect);
 
 #define DEFAULT_CONNECT_TIMEOUT 300000 /* milliseconds == five minutes */
 #define HAPPY_EYEBALLS_TIMEOUT     200 /* milliseconds to wait between
diff --git a/lib/ftp.c b/lib/ftp.c
index b23173118..04670b625 100644
--- a/lib/ftp.c
+++ b/lib/ftp.c
@@ -384,10 +384,10 @@ static CURLcode AcceptServerConnect(struct connectdata *conn)
  * Curl_pgrsTime(..., TIMER_STARTACCEPT);
  *
  */
-static long ftp_timeleft_accept(struct Curl_easy *data)
+static time_t ftp_timeleft_accept(struct Curl_easy *data)
 {
-  long timeout_ms = DEFAULT_ACCEPT_TIMEOUT;
-  long other;
+  time_t timeout_ms = DEFAULT_ACCEPT_TIMEOUT;
+  time_t other;
   struct timeval now;
 
   if(data->set.accepttimeout > 0)
@@ -430,7 +430,7 @@ static CURLcode ReceivedServerConnect(struct connectdata *conn, bool *received)
   struct ftp_conn *ftpc = &conn->proto.ftpc;
   struct pingpong *pp = &ftpc->pp;
   int result;
-  long timeout_ms;
+  time_t timeout_ms;
   ssize_t nread;
   int ftpcode;
 
@@ -547,7 +547,7 @@ static CURLcode InitiateTransfer(struct connectdata *conn)
 static CURLcode AllowServerConnect(struct connectdata *conn, bool *connected)
 {
   struct Curl_easy *data = conn->data;
-  long timeout_ms;
+  time_t timeout_ms;
   CURLcode result = CURLE_OK;
 
   *connected = FALSE;
@@ -687,8 +687,8 @@ CURLcode Curl_GetFTPResponse(ssize_t *nreadp, /* return number of bytes read */
    * line in a response or continue reading.  */
 
   curl_socket_t sockfd = conn->sock[FIRSTSOCKET];
-  long timeout;              /* timeout in milliseconds */
-  long interval_ms;
+  time_t timeout;              /* timeout in milliseconds */
+  time_t interval_ms;
   struct Curl_easy *data = conn->data;
   CURLcode result = CURLE_OK;
   struct ftp_conn *ftpc = &conn->proto.ftpc;
@@ -3250,7 +3250,7 @@ static CURLcode ftp_done(struct connectdata *conn, CURLcode status,
   ssize_t nread;
   int ftpcode;
   CURLcode result = CURLE_OK;
-  char *path;
+  char *path = NULL;
   const char *path_to_use = data->state.path;
 
   if(!ftp)
diff --git a/lib/hostip.c b/lib/hostip.c
index 24a922eb2..464fa4e1e 100644
--- a/lib/hostip.c
+++ b/lib/hostip.c
@@ -568,7 +568,7 @@ int Curl_resolv_timeout(struct connectdata *conn,
                         const char *hostname,
                         int port,
                         struct Curl_dns_entry **entry,
-                        long timeoutms)
+                        time_t timeoutms)
 {
 #ifdef USE_ALARM_TIMEOUT
 #ifdef HAVE_SIGACTION
diff --git a/lib/hostip.h b/lib/hostip.h
index 9098ee39d..620797c29 100644
--- a/lib/hostip.h
+++ b/lib/hostip.h
@@ -87,7 +87,7 @@ int Curl_resolv(struct connectdata *conn, const char *hostname,
                 int port, struct Curl_dns_entry **dnsentry);
 int Curl_resolv_timeout(struct connectdata *conn, const char *hostname,
                         int port, struct Curl_dns_entry **dnsentry,
-                        long timeoutms);
+                        time_t timeoutms);
 
 #ifdef CURLRES_IPV6
 /*
diff --git a/lib/http_proxy.c b/lib/http_proxy.c
index 8f5e9b4e5..9ffd1cd46 100644
--- a/lib/http_proxy.c
+++ b/lib/http_proxy.c
@@ -113,7 +113,7 @@ CURLcode Curl_proxyCONNECT(struct connectdata *conn,
   curl_off_t cl=0;
   bool closeConnection = FALSE;
   bool chunked_encoding = FALSE;
-  long check;
+  time_t check;
 
 #define SELECT_OK      0
 #define SELECT_ERROR   1
diff --git a/lib/multi.c b/lib/multi.c
index 2432b15d0..ca97aba84 100644
--- a/lib/multi.c
+++ b/lib/multi.c
@@ -1300,7 +1300,7 @@ static CURLMcode multi_runsingle(struct Curl_multi *multi,
   CURLMcode rc;
   CURLcode result = CURLE_OK;
   struct SingleRequest *k;
-  long timeout_ms;
+  time_t timeout_ms;
   int control;
 
   if(!GOOD_EASY_HANDLE(data))
@@ -2486,7 +2486,7 @@ static CURLMcode add_next_timeout(struct timeval now,
      timeout in *tv */
   for(e = list->head; e;) {
     struct curl_llist_element *n = e->next;
-    long diff = curlx_tvdiff(*(struct timeval *)e->ptr, now);
+    time_t diff = curlx_tvdiff(*(struct timeval *)e->ptr, now);
     if(diff <= 0)
       /* remove outdated entry */
       Curl_llist_remove(list, e, NULL);
@@ -2764,7 +2764,7 @@ static CURLMcode multi_timeout(struct Curl_multi *multi,
 
     if(Curl_splaycomparekeys(multi->timetree->key, now) > 0) {
       /* some time left before expiration */
-      *timeout_ms = curlx_tvdiff(multi->timetree->key, now);
+      *timeout_ms = (long)curlx_tvdiff(multi->timetree->key, now);
       if(!*timeout_ms)
         /*
          * Since we only provide millisecond resolution on the returned value
@@ -2871,7 +2871,7 @@ multi_addtimeout(struct curl_llist *timeoutlist,
     /* find the correct spot in the list */
     for(e = timeoutlist->head; e; e = e->next) {
       struct timeval *checktime = e->ptr;
-      long diff = curlx_tvdiff(*checktime, *timedup);
+      time_t diff = curlx_tvdiff(*checktime, *timedup);
       if(diff > 0)
         break;
       prev = e;
@@ -2898,7 +2898,7 @@ multi_addtimeout(struct curl_llist *timeoutlist,
  * The timeout will be added to a queue of timeouts if it defines a moment in
  * time that is later than the current head of queue.
  */
-void Curl_expire(struct Curl_easy *data, long milli)
+void Curl_expire(struct Curl_easy *data, time_t milli)
 {
   struct Curl_multi *multi = data->multi;
   struct timeval *nowp = &data->state.expiretime;
@@ -2911,7 +2911,7 @@ void Curl_expire(struct Curl_easy *data, long milli)
     return;
 
   set = Curl_tvnow();
-  set.tv_sec += milli/1000;
+  set.tv_sec += (long)(milli/1000);
   set.tv_usec += (milli%1000)*1000;
 
   if(set.tv_usec >= 1000000) {
@@ -2923,7 +2923,7 @@ void Curl_expire(struct Curl_easy *data, long milli)
     /* This means that the struct is added as a node in the splay tree.
        Compare if the new time is earlier, and only remove-old/add-new if it
        is. */
-    long diff = curlx_tvdiff(set, *nowp);
+    time_t diff = curlx_tvdiff(set, *nowp);
     if(diff > 0) {
       /* the new expire time was later so just add it to the queue
          and get out */
@@ -2961,14 +2961,14 @@ void Curl_expire(struct Curl_easy *data, long milli)
  * time-out period to expire.
  *
  */
-void Curl_expire_latest(struct Curl_easy *data, long milli)
+void Curl_expire_latest(struct Curl_easy *data, time_t milli)
 {
   struct timeval *expire = &data->state.expiretime;
 
   struct timeval set;
 
   set = Curl_tvnow();
-  set.tv_sec += milli / 1000;
+  set.tv_sec += (long)(milli / 1000);
   set.tv_usec += (milli % 1000) * 1000;
 
   if(set.tv_usec >= 1000000) {
@@ -2980,7 +2980,7 @@ void Curl_expire_latest(struct Curl_easy *data, long milli)
     /* This means that the struct is added as a node in the splay tree.
        Compare if the new time is earlier, and only remove-old/add-new if it
          is. */
-    long diff = curlx_tvdiff(set, *expire);
+    time_t diff = curlx_tvdiff(set, *expire);
     if(diff > 0)
       /* the new expire time was later than the top time, so just skip this */
       return;
diff --git a/lib/multiif.h b/lib/multiif.h
index eaff496ea..e5de1fc49 100644
--- a/lib/multiif.h
+++ b/lib/multiif.h
@@ -25,9 +25,9 @@
 /*
  * Prototypes for library-wide functions provided by multi.c
  */
-void Curl_expire(struct Curl_easy *data, long milli);
+void Curl_expire(struct Curl_easy *data, time_t milli);
 void Curl_expire_clear(struct Curl_easy *data);
-void Curl_expire_latest(struct Curl_easy *data, long milli);
+void Curl_expire_latest(struct Curl_easy *data, time_t milli);
 bool Curl_pipeline_wanted(const struct Curl_multi* multi, int bits);
 void Curl_multi_handlePipeBreak(struct Curl_easy *data);
 
diff --git a/lib/pingpong.c b/lib/pingpong.c
index bf2c8fd0a..ded17ef40 100644
--- a/lib/pingpong.c
+++ b/lib/pingpong.c
@@ -44,12 +44,12 @@
 
 /* Returns timeout in ms. 0 or negative number means the timeout has already
    triggered */
-long Curl_pp_state_timeout(struct pingpong *pp)
+time_t Curl_pp_state_timeout(struct pingpong *pp)
 {
   struct connectdata *conn = pp->conn;
   struct Curl_easy *data=conn->data;
-  long timeout_ms; /* in milliseconds */
-  long timeout2_ms; /* in milliseconds */
+  time_t timeout_ms; /* in milliseconds */
+  time_t timeout2_ms; /* in milliseconds */
   long response_time= (data->set.server_response_timeout)?
     data->set.server_response_timeout: pp->response_time;
 
@@ -83,8 +83,8 @@ CURLcode Curl_pp_statemach(struct pingpong *pp, bool block)
   struct connectdata *conn = pp->conn;
   curl_socket_t sock = conn->sock[FIRSTSOCKET];
   int rc;
-  long interval_ms;
-  long timeout_ms = Curl_pp_state_timeout(pp);
+  time_t interval_ms;
+  time_t timeout_ms = Curl_pp_state_timeout(pp);
   struct Curl_easy *data=conn->data;
   CURLcode result = CURLE_OK;
 
diff --git a/lib/pingpong.h b/lib/pingpong.h
index 2f649d5bf..500100ae4 100644
--- a/lib/pingpong.h
+++ b/lib/pingpong.h
@@ -88,7 +88,7 @@ void Curl_pp_init(struct pingpong *pp);
 
 /* Returns timeout in ms. 0 or negative number means the timeout has already
    triggered */
-long Curl_pp_state_timeout(struct pingpong *pp);
+time_t Curl_pp_state_timeout(struct pingpong *pp);
 
 
 /***********************************************************************
diff --git a/lib/select.c b/lib/select.c
index 26302d907..03af645ee 100644
--- a/lib/select.c
+++ b/lib/select.c
@@ -145,7 +145,7 @@ int Curl_wait_ms(int timeout_ms)
 int Curl_socket_check(curl_socket_t readfd0, /* two sockets to read from */
                       curl_socket_t readfd1,
                       curl_socket_t writefd, /* socket to write to */
-                      long timeout_ms)       /* milliseconds to wait */
+                      time_t timeout_ms)     /* milliseconds to wait */
 {
 #ifdef HAVE_POLL_FINE
   struct pollfd pfd[3];
diff --git a/lib/select.h b/lib/select.h
index 1d26f4999..e247bd9d0 100644
--- a/lib/select.h
+++ b/lib/select.h
@@ -73,7 +73,7 @@ struct pollfd
 
 int Curl_socket_check(curl_socket_t readfd, curl_socket_t readfd2,
                       curl_socket_t writefd,
-                      long timeout_ms);
+                      time_t timeout_ms);
 
 #define SOCKET_READABLE(x,z) \
   Curl_socket_check(x, CURL_SOCKET_BAD, CURL_SOCKET_BAD, z)
diff --git a/lib/socks.c b/lib/socks.c
index 742d41156..3b28798e5 100644
--- a/lib/socks.c
+++ b/lib/socks.c
@@ -57,7 +57,7 @@ int Curl_blockread_all(struct connectdata *conn, /* connection data */
   ssize_t nread;
   ssize_t allread = 0;
   int result;
-  long timeleft;
+  time_t timeleft;
   *n = 0;
   for(;;) {
     timeleft = Curl_timeleft(conn->data, NULL, TRUE);
@@ -376,7 +376,7 @@ CURLcode Curl_SOCKS5(const char *proxy_name,
   CURLcode code;
   curl_socket_t sock = conn->sock[sockindex];
   struct Curl_easy *data = conn->data;
-  long timeout;
+  time_t timeout;
   bool socks5_resolve_local = (conn->proxytype == CURLPROXY_SOCKS5)?TRUE:FALSE;
   const size_t hostname_len = strlen(hostname);
   ssize_t len = 0;
diff --git a/lib/tftp.c b/lib/tftp.c
index deee39471..e780d5d16 100644
--- a/lib/tftp.c
+++ b/lib/tftp.c
@@ -199,7 +199,7 @@ const struct Curl_handler Curl_handler_tftp = {
 static CURLcode tftp_set_timeouts(tftp_state_data_t *state)
 {
   time_t maxtime, timeout;
-  long timeout_ms;
+  time_t timeout_ms;
   bool start = (state->state == TFTP_STATE_START) ? TRUE : FALSE;
 
   time(&state->start_time);
diff --git a/lib/transfer.c b/lib/transfer.c
index 6245ee402..a2882c5c8 100644
--- a/lib/transfer.c
+++ b/lib/transfer.c
@@ -1137,7 +1137,7 @@ CURLcode Curl_readwrite(struct connectdata *conn,
 
       */
 
-      long ms = Curl_tvdiff(k->now, k->start100);
+      time_t ms = Curl_tvdiff(k->now, k->start100);
       if(ms >= data->set.expect_100_timeout) {
         /* we've waited long enough, continue anyway */
         k->exp100 = EXP100_SEND_DATA;
diff --git a/lib/url.c b/lib/url.c
index ed74f3e3f..7106d46d4 100644
--- a/lib/url.c
+++ b/lib/url.c
@@ -3021,8 +3021,8 @@ Curl_oldest_idle_connection(struct Curl_easy *data)
   struct curl_hash_iterator iter;
   struct curl_llist_element *curr;
   struct curl_hash_element *he;
-  long highscore=-1;
-  long score;
+  time_t highscore=-1;
+  time_t score;
   struct timeval now;
   struct connectdata *conn_candidate = NULL;
   struct connectbundle *bundle;
@@ -3071,8 +3071,8 @@ find_oldest_idle_connection_in_bundle(struct Curl_easy *data,
                                       struct connectbundle *bundle)
 {
   struct curl_llist_element *curr;
-  long highscore=-1;
-  long score;
+  time_t highscore=-1;
+  time_t score;
   struct timeval now;
   struct connectdata *conn_candidate = NULL;
   struct connectdata *conn;
@@ -3154,7 +3154,7 @@ static int call_disconnect_if_dead(struct connectdata *conn,
 static void prune_dead_connections(struct Curl_easy *data)
 {
   struct timeval now = Curl_tvnow();
-  long elapsed = Curl_tvdiff(now, data->state.conn_cache->last_cleanup);
+  time_t elapsed = Curl_tvdiff(now, data->state.conn_cache->last_cleanup);
 
   if(elapsed >= 1000L) {
     Curl_conncache_foreach(data->state.conn_cache, data,
@@ -5537,7 +5537,7 @@ static CURLcode resolve_server(struct Curl_easy *data,
                                bool *async)
 {
   CURLcode result=CURLE_OK;
-  long timeout_ms = Curl_timeleft(data, NULL, TRUE);
+  time_t timeout_ms = Curl_timeleft(data, NULL, TRUE);
 
   /*************************************************************
    * Resolve the name of the server or proxy
diff --git a/lib/urldata.h b/lib/urldata.h
index 921407354..badd765b9 100644
--- a/lib/urldata.h
+++ b/lib/urldata.h
@@ -962,8 +962,8 @@ struct connectdata {
   struct timeval connecttime;
   /* The two fields below get set in Curl_connecthost */
   int num_addr; /* number of addresses to try to connect to */
-  long timeoutms_per_addr; /* how long time in milliseconds to spend on
-                              trying to connect to each IP address */
+  time_t timeoutms_per_addr; /* how long time in milliseconds to spend on
+                                trying to connect to each IP address */
 
   const struct Curl_handler *handler; /* Connection's protocol handler */
   const struct Curl_handler *given;   /* The protocol first given */