diff --git a/test/nim.cfg b/test/nim.cfg
index a2626a3..5737c53 100644
--- a/test/nim.cfg
+++ b/test/nim.cfg
@@ -1,6 +1,6 @@
 path = "."
 hints = off
-linedir = off
+linedir = on
 debuginfo
 stacktrace = on
 linetrace = on
diff --git a/test/ttimeutils.nim b/test/ttimeutils.nim
index 6e6b016..e3d9a44 100644
--- a/test/ttimeutils.nim
+++ b/test/ttimeutils.nim
@@ -3,6 +3,58 @@ import times, timeutils, unittest
 suite "timeutils":
   test "format TimeInterval":
     let interval = seconds(70)
-    check interval.format("ss's'") == "10s"
-    check interval.format("mm'm' ss's'") == "01m 10s"
-    check interval.format("mm:ss") == "01:10"
+    check:
+      interval.format("ss's'") == "10s"
+      interval.format("mm'm' ss's'") == "01m 10s"
+      interval.format("mm:ss") == "01:10"
+
+  test "TimeInfo difference":
+    let t1 = getLocalTime(getTime())
+    let t2 = t1 + 30.seconds
+
+    check t2 - t1 == 30.seconds
+
+  test "TimeInfo comparisons":
+    let t1 = getLocalTime(getTime())
+
+    check:
+      t1 < t1 + 10.seconds
+      not (t1 + 10.seconds < t1)
+      not (t1 > t1)
+
+      t1 + 10.seconds > t1
+      not (t1 > t1 + 10.seconds)
+      not (t1 < t1)
+
+      t1 + 10.seconds >= t1
+      t1 >= t1
+      not (t1 >= t1 + 10.seconds)
+
+      t1 <= t1 + 10.seconds
+      t1 <= t1
+      not (t1 + 10.seconds <= t1)
+ 
+  test "TimeInterval comparisons":
+    check:
+      30.seconds > 10.seconds
+      not (10.seconds > 30.seconds)
+      not (10.seconds > 10.seconds)
+
+      10.minutes < 1.hours
+      not (1.hours < 10.minutes)
+      not (1.hours < 1.hours)
+
+      60.seconds >= 1.minutes
+      60.seconds >= 1.minutes
+      not (60.seconds >= 2.minutes)
+
+      60.seconds <= 1.minutes
+      60.seconds <= 2.minutes
+      not (2.minutes <= 60.seconds)
+
+  test "TimeInfo cmp":
+    let t1 = getLocalTime(getTime())
+
+    check cmp(t1, t1) == 0
+    check cmp(t1, t1 + 10.seconds) == -1
+    check cmp(t1 + 10.seconds, t1) == 1
diff --git a/timeutils.nim b/timeutils.nim
index 80a71ca..8e37452 100644
--- a/timeutils.nim
+++ b/timeutils.nim
@@ -1,5 +1,39 @@
 import times
 
+const zeroTime = fromSeconds(0)
+
 proc format*(ti: TimeInterval, fmt: string): string =
   let info = getGMTime(fromSeconds(0) + ti)
   return info.format(fmt)
+
+proc `-`*(a, b: TimeInfo): TimeInterval =
+  return seconds(cast[int](a.toTime - b.toTime))
+
+proc `>`*(a, b: TimeInfo): bool =
+  return a.toTime > b.toTime
+
+proc `<`*(a, b: TimeInfo): bool =
+  return a.toTime < b.toTime
+
+proc `>=`*(a, b: TimeInfo): bool =
+  return a.toTime >= b.toTime
+
+proc `<=`*(a, b: TimeInfo): bool =
+  return a.toTime <= b.toTime
+
+proc `>`*(a, b: TimeInterval): bool =
+  return (zeroTime + a) > (zeroTime + b)
+
+proc `<`*(a, b: TimeInterval): bool =
+  return (zeroTime + a) < (zeroTime + b)
+
+proc `>=`*(a, b: TimeInterval): bool =
+  return (zeroTime + a) >= (zeroTime + b)
+
+proc `<=`*(a, b: TimeInterval): bool =
+  return (zeroTime + a) <= (zeroTime + b)
+
+proc cmp(a, b: TimeInfo): int =
+  if b == a: return 0
+  elif b > a: return 1
+  else: return -1