diff --git a/base/base.pro b/base/base.pro
index 2f32121666..5709bcc700 100644
--- a/base/base.pro
+++ b/base/base.pro
@@ -31,7 +31,6 @@ SOURCES += \
     thread_pool.cpp \
     threaded_container.cpp \
     timer.cpp \
-    w3ctime.cpp \
 
 HEADERS += \
     SRC_FIRST.hpp \
@@ -82,5 +81,4 @@ HEADERS += \
     threaded_list.hpp \
     threaded_priority_queue.hpp \
     timer.hpp \
-    w3ctime.hpp \
     worker_thread.hpp \
diff --git a/base/base_tests/base_tests.pro b/base/base_tests/base_tests.pro
index fa45f82abd..a827fb1513 100644
--- a/base/base_tests/base_tests.pro
+++ b/base/base_tests/base_tests.pro
@@ -39,6 +39,5 @@ SOURCES += \
   threads_test.cpp \
   timer_test.cpp \
   worker_thread_test.cpp \
-  w3ctime_test.cpp \
 
 HEADERS +=
diff --git a/base/base_tests/w3ctime_test.cpp b/base/base_tests/w3ctime_test.cpp
deleted file mode 100644
index 1d42f1ce32..0000000000
--- a/base/base_tests/w3ctime_test.cpp
+++ /dev/null
@@ -1,19 +0,0 @@
-#include "testing/testing.hpp"
-
-#include "base/w3ctime.hpp"
-
-using namespace base;
-
-UNIT_TEST(ParseTime)
-{
-  TEST(NotATime(ParseTime("")), ());
-  TEST(NotATime(ParseTime("2015-10-11 23:21")), ());
-  TEST(!NotATime(ParseTime("2015-10-11T23:21Z")), ());
-  TEST_EQUAL(ParseTime("2015-10-11T23:21Z"), 1444605660, ());
-}
-
-UNIT_TEST(TimeToString)
-{
-  TEST_EQUAL(TimeToString(0), "1970-01-01T00:00Z", ());
-  TEST_EQUAL(TimeToString(1444605660), "2015-10-11T23:21Z", ());
-}
diff --git a/base/w3ctime.cpp b/base/w3ctime.cpp
deleted file mode 100644
index 3d3c3c2e7f..0000000000
--- a/base/w3ctime.cpp
+++ /dev/null
@@ -1,43 +0,0 @@
-#include "w3ctime.hpp"
-
-#include "std/array.hpp"
-
-// It would be better to use c++ standard means of
-// time parsing and unparsing like
-// time_get/time_put (<locale>) or get_time/put_time (<iomanip>).
-// But at the moment of writing they was not widely supporded
-// and/or worked incorrect.
-//
-// All covertions are made in UTC
-
-namespace
-{
-char constexpr kW3CTimeFormat[] = "%Y-%m-%dT%H:%MZ";
-
-// Two more digits for year.
-size_t constexpr kBufSize = sizeof(kW3CTimeFormat) + 2;
-} // namespace
-
-namespace base
-{
-time_t ParseTime(std::string const & w3ctime) noexcept
-{
-  std::tm tm{};
-  if (strptime(w3ctime.data(), kW3CTimeFormat, &tm) == nullptr)
-    return -1;
-
-  return timegm(&tm);
-}
-
-std::string TimeToString(time_t const timestamp)
-{
-  std::tm tm{};
-  array<char, kBufSize> buff{};
-
-  gmtime_r(&timestamp, &tm);
-  if (strftime(buff.data(), kBufSize, kW3CTimeFormat, &tm) == 0)
-    buff[0] = 0;
-
-  return buff.data();
-}
-} // namespace base
diff --git a/base/w3ctime.hpp b/base/w3ctime.hpp
deleted file mode 100644
index 60745afda9..0000000000
--- a/base/w3ctime.hpp
+++ /dev/null
@@ -1,22 +0,0 @@
-#pragma once
-
-#include "std/ctime.hpp"
-#include "std/string.hpp"
-
-namespace base
-{
-
-inline bool NotATime(time_t const t) noexcept { return t == -1; }
-
-// See http://www.w3.org/TR/NOTE-datetime to learn more
-// about the format.
-
-// Parses a string of a format YYYY-MM-DDThh:mmTZD
-// (eg 1997-07-16T19:20:30.45+01:00).
-// Returns timestamp corresponding to w3ctime or -1 on failure.
-time_t ParseTime(std::string const & w3ctime) noexcept;
-
-// Converts timestamp to a string of a fromat YYYY-MM-DDThh:mmTZD
-// or empty string if cannot convert.
-std::string TimeToString(time_t const timestamp);
-} // namespace base