diff --git a/include/c11log/formatter.h b/include/c11log/formatter.h
index 65e5b028..cea5c920 100644
--- a/include/c11log/formatter.h
+++ b/include/c11log/formatter.h
@@ -16,52 +16,10 @@
 
 namespace c11log
 {
-namespace formatters
-{
 
 class formatter
 {
 public:
     virtual void format(details::log_msg& msg) = 0;
 };
-
-
-class default_formatter: public formatter
-{
-public:
-    // Format: [2013-12-29 01:04:42.900] [logger_name:Info] Message body
-    void format(details::log_msg& msg) override
-    {
-        details::fast_oss oss;
-        _format_time(msg, oss);
-
-        if(!msg.logger_name.empty())
-            oss << " [" <<  msg.logger_name << ':' << c11log::level::to_str(msg.level) << "] ";
-        else
-            oss << " [" << c11log::level::to_str(msg.level) << "] ";
-
-        oss << msg.raw << details::os::eol();
-        msg.formatted = oss.str();
-    }
-private:
-    void _format_time(const details::log_msg& msg, std::ostream &output);
-
-};
-
-
-} //namespace formatter
-} //namespace c11log
-
-// Format datetime like this: [2014-03-14 17:15:22]
-inline void c11log::formatters::default_formatter::_format_time(const details::log_msg& msg, std::ostream &output)
-{
-    output.fill('0');
-    output << '[' << msg.tm_time.tm_year + 1900 << '-';
-    output.width(2);
-    output << msg.tm_time.tm_mon + 1 << '-';
-    output << msg.tm_time.tm_mday << ' ';
-    output << msg.tm_time.tm_hour << ':';
-    output << msg.tm_time.tm_min << ':';
-    output << msg.tm_time.tm_sec << ']';
 }
-
diff --git a/include/c11log/logger.h b/include/c11log/logger.h
index 40b0b333..2461ce6c 100644
--- a/include/c11log/logger.h
+++ b/include/c11log/logger.h
@@ -14,6 +14,7 @@
 
 #include "sinks/base_sink.h"
 #include "common.h"
+#include "pattern_formatter.h"
 
 namespace c11log
 {
@@ -29,7 +30,7 @@ public:
     using sink_ptr = std::shared_ptr<sinks::isink>;
     using sinks_vector_t = std::vector<sink_ptr>;
     using sinks_init_list = std::initializer_list<sink_ptr>;
-    using formatter_ptr = std::unique_ptr<formatters::formatter>;
+    using formatter_ptr = std::unique_ptr<formatter>;
 
     logger(const std::string& name, sinks_init_list, formatter_ptr = nullptr);
     template<class It>
@@ -112,7 +113,7 @@ inline c11log::logger::logger(const std::string& name, sinks_init_list sinks_lis
     //Seems that vs2013 doesn't support std::atomic member initialization yet
     _level = level::INFO;
     if(!_formatter)
-        _formatter = std::make_unique<formatters::default_formatter>();
+        _formatter = std::make_unique<pattern_formatter>("%t");
 
 }
 
diff --git a/include/c11log/pattern_formatter.h b/include/c11log/pattern_formatter.h
index 08917ab5..15b2a0f0 100644
--- a/include/c11log/pattern_formatter.h
+++ b/include/c11log/pattern_formatter.h
@@ -119,7 +119,7 @@ class e_appender :public pattern_appender
     void append(const details::log_msg& msg, details::fast_oss& oss) override
     {
         auto duration = msg.time.time_since_epoch();
-        auto millis = std::chrono::duration_cast<std::chrono::milliseconds>(duration).count() % 1000;
+        int millis = static_cast<int>(std::chrono::duration_cast<std::chrono::milliseconds>(duration).count() % 1000);
         oss.put_int(millis, 3);
     }
 };
@@ -166,8 +166,6 @@ private:
 }
 
 
-namespace formatters
-{
 class pattern_formatter : public formatter
 {
 
@@ -182,16 +180,16 @@ private:
     void compile_pattern(const std::string& pattern);
 };
 }
-}
 
 
-c11log::formatters::pattern_formatter::pattern_formatter(const std::string& pattern)
+
+inline c11log::pattern_formatter::pattern_formatter(const std::string& pattern)
 {
     compile_pattern(pattern);
 }
 
 
-void c11log::formatters::pattern_formatter::compile_pattern(const std::string& pattern)
+inline void c11log::pattern_formatter::compile_pattern(const std::string& pattern)
 {
     auto end = pattern.end();
     for (auto it = pattern.begin(); it != end; ++it)
@@ -211,7 +209,7 @@ void c11log::formatters::pattern_formatter::compile_pattern(const std::string& p
     }
 
 }
-void c11log::formatters::pattern_formatter::handle_flag(char flag)
+inline void c11log::pattern_formatter::handle_flag(char flag)
 {
     switch (flag)
     {
@@ -273,7 +271,7 @@ void c11log::formatters::pattern_formatter::handle_flag(char flag)
 }
 
 
-void c11log::formatters::pattern_formatter::format(details::log_msg& msg)
+inline void c11log::pattern_formatter::format(details::log_msg& msg)
 {
     details::fast_oss oss;
     for (auto &appender : _appenders)