diff --git a/src/lib/proxy.c b/src/lib/proxy.c
index b1a3522..ad383aa 100644
--- a/src/lib/proxy.c
+++ b/src/lib/proxy.c
@@ -19,7 +19,6 @@
 #include <errno.h>
 #include <openssl/err.h>
 #include <arpa/inet.h>
-#include <sys/time.h>
 #include <netdb.h>
 
 static SSL_CTX *proxy_ctx = NULL;
diff --git a/src/lib/utils.c b/src/lib/utils.c
index 63e0d5c..f708c9f 100644
--- a/src/lib/utils.c
+++ b/src/lib/utils.c
@@ -11,6 +11,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
+#include <time.h>
 
 
 static const char base64_encode_table[64] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
@@ -203,3 +204,9 @@ int base64_encode(void *data, unsigned long data_len, char *output, unsigned lon
 
     return 0;
 }
+
+long clock_micros(void) {
+    struct timespec time;
+    clock_gettime(CLOCK_MONOTONIC, &time);
+    return time.tv_sec * 10000000 + time.tv_nsec / 1000;
+}
diff --git a/src/lib/utils.h b/src/lib/utils.h
index 608a60a..504682d 100644
--- a/src/lib/utils.h
+++ b/src/lib/utils.h
@@ -37,4 +37,6 @@ int str_trim_lws(char **start, char **end);
 
 int base64_encode(void *data, unsigned long data_len, char *output, unsigned long *output_len);
 
+long clock_micros(void);
+
 #endif //SESIMOS_UTILS_H
diff --git a/src/worker/func.h b/src/worker/func.h
index a113bd0..7523422 100644
--- a/src/worker/func.h
+++ b/src/worker/func.h
@@ -23,7 +23,7 @@ typedef struct {
     char req_host[256], err_msg[256];
     char log_prefix[512];
     char _c_addr[INET6_ADDRSTRLEN + 1], _s_addr[INET6_ADDRSTRLEN + 1];
-    struct timespec begin, end;
+    long cnx_s, cnx_e, req_s, res_ts, req_e;
     http_req req;
     http_res res;
     http_uri uri;
diff --git a/src/worker/request_handler.c b/src/worker/request_handler.c
index 00aa6c9..efa7588 100644
--- a/src/worker/request_handler.c
+++ b/src/worker/request_handler.c
@@ -71,7 +71,7 @@ static int request_handler(client_ctx_t *ctx) {
     status->origin = NONE;
     status->ws_key = NULL;
 
-    clock_gettime(CLOCK_MONOTONIC, &ctx->begin);
+    ctx->req_s = clock_micros();
 
     // FIXME async poll
     ret = sock_poll_read(&client, NULL, NULL, 1, NULL, NULL, CLIENT_TIMEOUT * 1000);
@@ -85,7 +85,8 @@ static int request_handler(client_ctx_t *ctx) {
         res->status = http_get_status(408);
         return 0;
     }
-    clock_gettime(CLOCK_MONOTONIC, &ctx->begin);
+
+    ctx->req_s = clock_micros();
 
     http_req *req = &ctx->req;
     ret = http_receive_request(client, req);
@@ -298,12 +299,11 @@ int respond(client_ctx_t *ctx) {
     }
 
     http_send_response(client, res);
-    clock_gettime(CLOCK_MONOTONIC, &ctx->end);
+    ctx->res_ts = clock_micros();
     const char *location = http_get_header_field(&res->hdr, "Location");
-    unsigned long micros = (ctx->end.tv_nsec - ctx->begin.tv_nsec) / 1000 + (ctx->end.tv_sec - ctx->begin.tv_sec) * 1000000;
     info("%s%s%03i %s%s%s (%s)%s", http_get_status_color(res->status), ctx->use_proxy ? "-> " : "", res->status->code,
          res->status->msg, location != NULL ? " -> " : "", location != NULL ? location : "",
-         format_duration(micros, buf0), CLR_STR);
+         format_duration(ctx->res_ts - ctx->req_s, buf0), CLR_STR);
 
     // TODO access/error log file
 
@@ -361,9 +361,8 @@ int request_complete(client_ctx_t *ctx) {
     //}
 
     char buf[32];
-    clock_gettime(CLOCK_MONOTONIC, &ctx->end);
-    long micros = (ctx->end.tv_nsec - ctx->begin.tv_nsec) / 1000 + (ctx->end.tv_sec - ctx->begin.tv_sec) * 1000000;
-    info("Transfer complete: %s", format_duration(micros, buf));
+    ctx->req_e = clock_micros();
+    info("Transfer complete: %s", format_duration(ctx->req_e - ctx->req_s, buf));
 
     uri_free(&ctx->uri);
     http_free_req(&ctx->req);
diff --git a/src/worker/tcp_acceptor.c b/src/worker/tcp_acceptor.c
index 4e9d526..baecf35 100644
--- a/src/worker/tcp_acceptor.c
+++ b/src/worker/tcp_acceptor.c
@@ -59,7 +59,7 @@ static int tcp_acceptor(client_ctx_t *ctx) {
     char buf[1024];
     sock *client = &ctx->socket;
 
-    clock_gettime(CLOCK_MONOTONIC, &ctx->begin);
+    ctx->cnx_s = clock_micros();
 
     if (config.dns_server[0] != 0) {
         sprintf(buf, "dig @%s +short +time=1 -x %s", config.dns_server, ctx->socket.addr);
diff --git a/src/worker/tcp_closer.c b/src/worker/tcp_closer.c
index 4c6d6e0..69e0d77 100644
--- a/src/worker/tcp_closer.c
+++ b/src/worker/tcp_closer.c
@@ -17,10 +17,9 @@ void tcp_closer_func(client_ctx_t *ctx) {
 
     sock_close(&ctx->socket);
 
+    ctx->cnx_e = clock_micros();
     char buf[32];
-    clock_gettime(CLOCK_MONOTONIC, &ctx->end);
-    unsigned long micros = (ctx->end.tv_nsec - ctx->begin.tv_nsec) / 1000 + (ctx->end.tv_sec - ctx->begin.tv_sec) * 1000000;
-    info("Connection closed (%s)", format_duration(micros, buf));
+    info("Connection closed (%s)", format_duration(ctx->cnx_e - ctx->cnx_s, buf));
 
     memset(ctx, 0, sizeof(*ctx));
 }