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diff --git a/src/third_party/timelib-2018.01/docs/date-from-parts.c b/src/third_party/timelib-2018.01/docs/date-from-parts.c
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+++ b/src/third_party/timelib-2018.01/docs/date-from-parts.c
@@ -0,0 +1,124 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Derick Rethans
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/*
+ * Example that shows how to convert a date/time in its parts, to a 
+ * Unix timestamp.
+ *
+ * Compile with:
+ * gcc -ggdb3 -o date-from-parts date-from-parts.c ../timelib.a -lm
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include "../timelib.h"
+
+struct {
+	timelib_tzdb *db;
+	/* cache *tz_cache; */
+} global;
+
+void create_cache(timelib_tzdb *db)
+{
+	global.db = db;
+
+	/* Loop over all the entries and store in tz_cache */
+}
+
+void cleanup_cache()
+{
+	if (global.db != timelib_builtin_db()) {
+		timelib_zoneinfo_dtor(global.db);
+	}
+
+	/* Loop over all the entries in tz_cache and free */
+}
+
+timelib_tzinfo *cached_tzfile_wrapper(char *tz_id, const timelib_tzdb *db, int *error)
+{
+	/* return tz_cache[tzid]; (pseudo code) */
+	return timelib_parse_tzfile(tz_id, global.db, error);
+}
+
+timelib_tzinfo *cached_fetch_tzinfo(char *tz_id)
+{
+	int dummy_error;
+
+	return cached_tzfile_wrapper(tz_id, global.db, &dummy_error);
+}
+
+int main(void)
+{
+	timelib_sll ty = 2017;
+	timelib_sll tm = 6;
+	timelib_sll td = 6;
+	timelib_sll th = 12;
+	timelib_sll ti = 50;
+	timelib_sll ts = 58;
+	timelib_sll tus = 713 * 1000;
+	char           *tz_id = "America/New_York";
+	timelib_time   *t;
+	timelib_tzinfo *tzi;
+
+	create_cache((timelib_tzdb*) timelib_builtin_db());
+
+	tzi = cached_fetch_tzinfo(tz_id);
+
+	t = timelib_time_ctor();
+	t->y = ty; t->m = tm; t->d = td;
+	t->h = th; t->i = ti; t->s = ts;
+	t->us = tus;
+
+	timelib_update_ts(t, tzi);
+	timelib_set_timezone(t, tzi);
+	timelib_unixtime2gmt(t, t->sse); /* Note it says gmt in the function name */
+
+
+#define LLABS(y) (y < 0 ? (y * -1) : y)
+
+	/* Show parts Y/m/d */
+	{
+		printf(
+			"%s%04lld-%02lld-%02lld %02lld:%02lld:%02lld",
+			t->y < 0 ? "-" : "", LLABS(t->y),
+			t->m, t->d, t->h, t->i, t->s
+		);
+		if (t->us > 0) {
+			printf(".%06lld", t->us);
+		}
+		printf("\n");
+	}
+
+
+	/* Show Unix timestamp */
+	{
+		printf("Timestamp: %lld\n", t->sse);
+	}
+
+
+	timelib_tzinfo_dtor(tzi);
+	timelib_time_dtor(t);
+
+	cleanup_cache();
+}