initial import

core/timex/relativetime.go

@@ -0,0 +1,18 @@
+package timex
+
+import "time"
+
+// Use the long enough past time as start time, in case timex.Now() - lastTime equals 0.
+var initTime = time.Now().AddDate(-1, -1, -1)
+
+func Now() time.Duration {
+	return time.Since(initTime)
+}
+
+func Since(d time.Duration) time.Duration {
+	return time.Since(initTime) - d
+}
+
+func Time() time.Time {
+	return initTime.Add(Now())
+}