1 files changed, 14 insertions, 0 deletions
diff --git a/src/libstddjb/utc_from_tai.c b/src/libstddjb/utc_from_tai.c
new file mode 100644
index 0000000..f4d247e
--- /dev/null
+++ b/src/libstddjb/utc_from_tai.c
@@ -0,0 +1,14 @@
+/* ISC license. */
+
+#include <skalibs/uint64.h>
+#include <skalibs/tai.h>
+#include <skalibs/djbtime.h>
+#include "djbtime-internal.h"
+
+int utc_from_tai (uint64 *u, tai_t const *t)
+{
+  uint64 tt = t->x - 10 ;
+  if (leapsecs_sub(&tt) < 0) return 0 ;
+  *u = tt ;
+  return 1 ;
+}