--- /dev/null
+<?php
+/**
+ * Timestamp
+ *
+ * Copyright (C) 2012 Tyler Romeo <tylerromeo@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ * @author Tyler Romeo <tylerromeo@gmail.com>
+ */
+
+/**
+ * Unix time - the number of seconds since 1970-01-01 00:00:00 UTC
+ */
+define( 'TS_UNIX', 0 );
+
+/**
+ * MediaWiki concatenated string timestamp (YYYYMMDDHHMMSS)
+ */
+define( 'TS_MW', 1 );
+
+/**
+ * MySQL DATETIME (YYYY-MM-DD HH:MM:SS)
+ */
+define( 'TS_DB', 2 );
+
+/**
+ * RFC 2822 format, for E-mail and HTTP headers
+ */
+define( 'TS_RFC2822', 3 );
+
+/**
+ * ISO 8601 format with no timezone: 1986-02-09T20:00:00Z
+ */
+define( 'TS_ISO_8601', 4 );
+
+/**
+ * An Exif timestamp (YYYY:MM:DD HH:MM:SS)
+ *
+ * @see http://exif.org/Exif2-2.PDF The Exif 2.2 spec, see page 28 for the
+ * DateTime tag and page 36 for the DateTimeOriginal and
+ * DateTimeDigitized tags.
+ */
+define( 'TS_EXIF', 5 );
+
+/**
+ * Oracle format time.
+ */
+define( 'TS_ORACLE', 6 );
+
+/**
+ * Postgres format time.
+ */
+define( 'TS_POSTGRES', 7 );
+
+/**
+ * ISO 8601 basic format with no timezone: 19860209T200000Z.
+ */
+define( 'TS_ISO_8601_BASIC', 9 );