1diff --git a/src/RawFormulas/Date.ts b/src/RawFormulas/Date.ts
  2index 8621ce3..ac577e8 100644
  3--- a/src/RawFormulas/Date.ts
  4+++ b/src/RawFormulas/Date.ts
  5@@ -586,6 +586,23 @@ var MINUTE = function (...values) {
  6   return m.minute();
  7 };
  8 
  9+/**
 10+ * Returns the second component of a specific time, in numeric format.
 11+ * @param values[0] time - The time from which to calculate the second component. Must be a reference to a cell
 12+ * containing a date/time, a function returning a date/time type, or a number.
 13+ * @returns {number} second component of a specific time.
 14+ * @constructor
 15+ */
 16+var SECOND = function (...values) : number {
 17+  ArgsChecker.checkLength(values, 1);
 18+  var time = TypeCaster.firstValueAsTimestampNumber(values[0]);
 19+  if (time % 1 === 0) {
 20+    return 0;
 21+  }
 22+  var m = moment.utc([1900]).add(time * MILLISECONDS_IN_DAY, "milliseconds");
 23+  return m.second();
 24+};
 25+
 26 
 27 // Functions unimplemented.
 28 var NETWORKDAYS;
 29@@ -594,7 +611,6 @@ var __COMPLEX_ITL = {
 30   "WORKDAY.INTL": function () {}
 31 };
 32 var NOW;
 33-var SECOND;
 34 var TIME;
 35 var TODAY;
 36 var WORKDAY;
 37@@ -615,5 +631,6 @@ export {
 38   YEARFRAC,
 39   TIMEVALUE,
 40   HOUR,
 41-  MINUTE
 42+  MINUTE,
 43+  SECOND
 44 }
 45\ No newline at end of file
 46diff --git a/src/RawFormulas/RawFormulas.ts b/src/RawFormulas/RawFormulas.ts
 47index 05aaf13..ba1b430 100644
 48--- a/src/RawFormulas/RawFormulas.ts
 49+++ b/src/RawFormulas/RawFormulas.ts
 50@@ -124,7 +124,8 @@ import {
 51   YEARFRAC,
 52   TIMEVALUE,
 53   HOUR,
 54-  MINUTE
 55+  MINUTE,
 56+  SECOND
 57 } from "./Date"
 58 
 59 var ACCRINT = Formula["ACCRINT"];
 60@@ -252,5 +253,6 @@ export {
 61   DATEDIF,
 62   TIMEVALUE,
 63   HOUR,
 64-  MINUTE
 65+  MINUTE,
 66+  SECOND
 67 }
 68\ No newline at end of file
 69diff --git a/tests/DateFormulasTest.ts b/tests/DateFormulasTest.ts
 70index 0be98f0..7db05cc 100644
 71--- a/tests/DateFormulasTest.ts
 72+++ b/tests/DateFormulasTest.ts
 73@@ -15,7 +15,8 @@ import {
 74   YEARFRAC,
 75   TIMEVALUE,
 76   HOUR,
 77-  MINUTE
 78+  MINUTE,
 79+  SECOND
 80 } from "../src/RawFormulas/RawFormulas"
 81 import * as ERRORS from "../src/Errors"
 82 import {assertEquals} from "./utils/Asserts"
 83@@ -36,6 +37,38 @@ function catchAndAssertEquals(toExecute, expected) {
 84   }
 85 }
 86 
 87+
 88+// Test SECOND
 89+assertEquals(SECOND("8:10"), 0);
 90+assertEquals(SECOND("8:11"), 0);
 91+assertEquals(SECOND("8:44"), 0);
 92+assertEquals(SECOND("8:70"), 0);
 93+assertEquals(SECOND("8:120"), 0);
 94+assertEquals(SECOND("8:10:22"), 22);
 95+assertEquals(SECOND("8:11:12"), 12);
 96+assertEquals(SECOND("8:44:09"), 9);
 97+assertEquals(SECOND("8:70:02"), 2);
 98+assertEquals(SECOND("8:120:44"), 44);
 99+assertEquals(SECOND("8:120:104"), 44);
100+assertEquals(SECOND("1992-1-1 8:120:104"), 44);
101+assertEquals(SECOND(0.511111111111), 0);
102+catchAndAssertEquals(function() {
103+  SECOND("8:10", 5);
104+}, ERRORS.NA_ERROR);
105+catchAndAssertEquals(function() {
106+  SECOND();
107+}, ERRORS.NA_ERROR);
108+catchAndAssertEquals(function() {
109+  SECOND("str");
110+}, ERRORS.VALUE_ERROR);
111+catchAndAssertEquals(function() {
112+  SECOND(" ");
113+}, ERRORS.VALUE_ERROR);
114+catchAndAssertEquals(function() {
115+  SECOND([]);
116+}, ERRORS.REF_ERROR);
117+
118+
119 // Test MINUTE
120 assertEquals(MINUTE("8:10"), 10);
121 assertEquals(MINUTE("8:11"), 11);