diff --git a/aegisub/libaegisub/common/log.cpp b/aegisub/libaegisub/common/log.cpp
index 6a5518049..f7571cc5a 100644
--- a/aegisub/libaegisub/common/log.cpp
+++ b/aegisub/libaegisub/common/log.cpp
@@ -20,11 +20,11 @@
 
 
 #include <stdio.h>
-#include <time.h>
 #include <string.h>
 
 #include "libaegisub/log.h"
 #include "libaegisub/mutex.h"
+#include "libaegisub/types.h"
 #include "libaegisub/util.h"
 
 namespace agi {
@@ -38,7 +38,7 @@ LogSink *log = new LogSink();
 const char *Severity_ID = "EAWID";
 
 SinkMessage::SinkMessage(const char *section, Severity severity, const char *file,
-			const char *func, int line, timeval tv):
+			const char *func, int line, agi_timeval tv):
 			section(section),
 			severity(severity),
 			file(file),
@@ -109,7 +109,7 @@ Message::Message(const char *section,
 				len(1024) {
 	buf = new char[len];
 	msg = new std::ostrstream(buf, len);
-	timeval tv;
+	agi_timeval tv;
 	util::time_log(tv);
 	sm = new SinkMessage(section, severity, file, func, line, tv);
 }
diff --git a/aegisub/libaegisub/include/libaegisub/log.h b/aegisub/libaegisub/include/libaegisub/log.h
index f6f303818..c6eca87ca 100644
--- a/aegisub/libaegisub/include/libaegisub/log.h
+++ b/aegisub/libaegisub/include/libaegisub/log.h
@@ -78,7 +78,7 @@ struct SinkMessage {
 	/// @param line     Source line
 	/// @param tv 		Log time
 	SinkMessage(const char *section, Severity severity, const char *file,
-            const char *func, int line, timeval tv);
+            const char *func, int line, agi_timeval tv);
 
 	// Destructor
 	~SinkMessage();
@@ -88,7 +88,7 @@ struct SinkMessage {
 	const char *file;		///< Source file
 	const char *func;		///< Function name
 	int line;				///< Source line
-	timeval tv;				///< Time at execution
+	agi_timeval tv;			///< Time at execution
 	char *message;			///< Formatted message
 	size_t len;				///< Message length
 };
diff --git a/aegisub/libaegisub/include/libaegisub/types.h b/aegisub/libaegisub/include/libaegisub/types.h
index b7f7d8283..83bae4f1b 100644
--- a/aegisub/libaegisub/include/libaegisub/types.h
+++ b/aegisub/libaegisub/include/libaegisub/types.h
@@ -21,6 +21,15 @@
 #ifndef LAGI_PRE
 #endif // LAGI_PRE
 
+#ifdef _WIN32
+#include <time.h>
+
+#else // Unix / OSX
+#include <sys/time.h>
+
+#endif // if _WIN32
+
+
 #pragma once
 
 namespace agi {
@@ -61,3 +70,14 @@ typedef struct tm {
 
 	} // namespace type
 } // namespace agi
+
+
+#ifdef _WIN32
+
+typedef agi::type::win::timeval agi_timeval;
+
+#else // Unix / OSX
+
+typedef timeval agi_timeval;
+
+#endif // if _WIN32
diff --git a/aegisub/libaegisub/include/libaegisub/util.h b/aegisub/libaegisub/include/libaegisub/util.h
index 0e479df80..36694ab61 100644
--- a/aegisub/libaegisub/include/libaegisub/util.h
+++ b/aegisub/libaegisub/include/libaegisub/util.h
@@ -32,7 +32,7 @@ namespace agi {
 
 	const std::string DirName(const std::string& path);
 	void Rename(const std::string& from, const std::string& to);
-	void time_log(timeval &tv);
+	void time_log(agi_timeval &tv);
 
 	} // namespace util
 } // namespace agi
diff --git a/aegisub/libaegisub/windows/util.cpp b/aegisub/libaegisub/windows/util.cpp
index ecca7430f..51bc59264 100644
--- a/aegisub/libaegisub/windows/util.cpp
+++ b/aegisub/libaegisub/windows/util.cpp
@@ -25,13 +25,11 @@
 #include <string>
 #include <fstream>
 
-#include <time.h>
 #include <windows.h>
-
 #endif
 
 #include "libaegisub/types.h"
-#include <libaegisub/charset_conv_win.h>
+#include "libaegisub/charset_conv_win.h"
 #include "libaegisub/util.h"
 #include "libaegisub/util_win.h"
 
@@ -74,9 +72,9 @@ std::string ErrorString(DWORD error) {
 }
 
 /// @brief Get seconds and microseconds.
-/// @param tv[out] timeval struct
+/// @param tv[out] agi_timeval struct
 /// This code is from http://www.suacommunity.com/dictionary/gettimeofday-entry.php
-void time_log(type::win::timeval &tv) {
+void time_log(agi_timeval &tv) {
 #if defined(_MSC_VER) || defined(_MSC_EXTENSIONS)
 #define DELTA_EPOCH_IN_MICROSECS  11644473600000000Ui64
 #else