diff --git a/src/eval.c b/src/eval.c
index c2d18aa..787f0f0 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -690,6 +690,9 @@
 static void f_range(typval_T *argvars, typval_T *rettv);
 static void f_readfile(typval_T *argvars, typval_T *rettv);
 static void f_reltime(typval_T *argvars, typval_T *rettv);
+#ifdef FEAT_FLOAT
+static void f_reltimefloat(typval_T *argvars, typval_T *rettv);
+#endif
 static void f_reltimestr(typval_T *argvars, typval_T *rettv);
 static void f_remote_expr(typval_T *argvars, typval_T *rettv);
 static void f_remote_foreground(typval_T *argvars, typval_T *rettv);
@@ -8270,6 +8273,7 @@
     {"range",		1, 3, f_range},
     {"readfile",	1, 3, f_readfile},
     {"reltime",		0, 2, f_reltime},
+    {"reltimefloat",	1, 1, f_reltimefloat},
     {"reltimestr",	1, 1, f_reltimestr},
     {"remote_expr",	2, 3, f_remote_expr},
     {"remote_foreground", 1, 1, f_remote_foreground},
@@ -16010,6 +16014,26 @@
 #endif
 }
 
+#ifdef FEAT_FLOAT
+/*
+ * "reltimefloat()" function
+ */
+    static void
+f_reltimefloat(typval_T *argvars UNUSED, typval_T *rettv)
+{
+# ifdef FEAT_RELTIME
+    proftime_T	tm;
+# endif
+
+    rettv->v_type = VAR_FLOAT;
+    rettv->vval.v_float = 0;
+# ifdef FEAT_RELTIME
+    if (list2proftime(&argvars[0], &tm) == OK)
+	rettv->vval.v_float = profile_float(&tm);
+# endif
+}
+#endif
+
 /*
  * "reltimestr()" function
  */
diff --git a/src/ex_cmds2.c b/src/ex_cmds2.c
index 98b8c8f..49e4d3d 100644
--- a/src/ex_cmds2.c
+++ b/src/ex_cmds2.c
@@ -1010,6 +1010,24 @@
     return buf;
 }
 
+# if defined(FEAT_FLOAT) || defined(PROTO)
+/*
+ * Return a float that represents the time in "tm".
+ */
+    float_T
+profile_float(proftime_T *tm)
+{
+#  ifdef WIN3264
+    LARGE_INTEGER   fr;
+
+    QueryPerformanceFrequency(&fr);
+    return (float_T)tm->QuadPart / (float_T)fr.QuadPart;
+#  else
+    return (float_T)tm->tv_sec + (float_T)tm->tv_usec / 1000000.0;
+#  endif
+}
+# endif
+
 /*
  * Put the time "msec" past now in "tm".
  */
diff --git a/src/proto/ex_cmds2.pro b/src/proto/ex_cmds2.pro
index 54ccf12..a73e10f 100644
--- a/src/proto/ex_cmds2.pro
+++ b/src/proto/ex_cmds2.pro
@@ -14,6 +14,7 @@
 void profile_end(proftime_T *tm);
 void profile_sub(proftime_T *tm, proftime_T *tm2);
 char *profile_msg(proftime_T *tm);
+float_T profile_float(proftime_T *tm);
 void profile_setlimit(long msec, proftime_T *tm);
 int profile_passed_limit(proftime_T *tm);
 void profile_zero(proftime_T *tm);
diff --git a/src/testdir/test_alot.vim b/src/testdir/test_alot.vim
index 9745433..e295649 100644
--- a/src/testdir/test_alot.vim
+++ b/src/testdir/test_alot.vim
@@ -9,6 +9,7 @@
 source test_json.vim
 source test_lispwords.vim
 source test_menu.vim
+source test_reltime.vim
 source test_searchpos.vim
 source test_set.vim
 source test_sort.vim
diff --git a/src/version.c b/src/version.c
index c2d75bb..ea0c770 100644
--- a/src/version.c
+++ b/src/version.c
@@ -748,6 +748,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1285,
+/**/
     1284,
 /**/
     1283,