1 files changed, 63 insertions, 0 deletions
diff --git a/src/utils/calendar.h b/src/utils/calendar.h
new file mode 100644
index 000000000..d617cc9a0
--- /dev/null
+++ b/src/utils/calendar.h
@@ -0,0 +1,63 @@
+/*
+* Calendar Functions
+* (C) 1999-2009 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#ifndef BOTAN_CALENDAR_H__
+#define BOTAN_CALENDAR_H__
+
+#include <botan/types.h>
+#include <chrono>
+
+namespace Botan {
+
+/**
+* Struct representing a particular date and time
+*/
+struct BOTAN_DLL calendar_point
+   {
+   /** The year */
+   u32bit year;
+
+   /** The month, 1 through 12 for Jan to Dec */
+   byte month;
+
+   /** The day of the month, 1 through 31 (or 28 or 30 based on month */
+   byte day;
+
+   /** Hour in 24-hour form, 0 to 23 */
+   byte hour;
+
+   /** Minutes in the hour, 0 to 60 */
+   byte minutes;
+
+   /** Seconds in the minute, 0 to 60, but might be slightly
+       larger to deal with leap seconds on some systems
+   */
+   byte seconds;
+
+   /**
+   * Initialize a calendar_point
+   * @param y the year
+   * @param mon the month
+   * @param d the day
+   * @param h the hour
+   * @param min the minute
+   * @param sec the second
+   */
+   calendar_point(u32bit y, byte mon, byte d, byte h, byte min, byte sec) :
+      year(y), month(mon), day(d), hour(h), minutes(min), seconds(sec) {}
+   };
+
+/*
+* @param time_point a time point from the system clock
+* @return calendar_point object representing this time point
+*/
+BOTAN_DLL calendar_point calendar_value(
+   const std::chrono::system_clock::time_point& time_point);
+
+}
+
+#endif