diff --git a/packages/core/src/modules/format.ts b/packages/core/src/modules/format.ts
index 17512134..9e3230e0 100644
--- a/packages/core/src/modules/format.ts
+++ b/packages/core/src/modules/format.ts
@@ -250,7 +250,7 @@ export function genarate(value: string | number | boolean) {
     ct = { fa: "General", t: "n" };
     v = parseFloat(value as string);
   } else if (
-    isdatetime(value) &&
+    isdatetime(value, "24") &&
     (value.toString().indexOf(".") > -1 ||
       value.toString().indexOf(":") > -1 ||
       value.toString().length < 16)
@@ -269,6 +269,36 @@ export function genarate(value: string | number | boolean) {
       ct.fa = "yyyy-MM-dd";
     }
 
+    ct.t = "d";
+    m = SSF.format(ct.fa, v);
+  } else if (
+    isdatetime(value, "12") &&
+    (value.toString().indexOf(".") > -1 ||
+      value.toString().indexOf(":") > -1 ||
+      value.toString().length < 20)
+  ) {
+    v = datenum_local(
+      parseDate(
+        value
+          .toString()
+          .replace(/-/g, "/")
+          .replace(/(AM|PM)/gi, " $1")
+          .replace(/  +/g, " ")
+      )
+    );
+
+    if (v.toString().indexOf(".") > -1) {
+      if (value.toString().length > 20) {
+        ct.fa = "yyyy-MM-dd hh:mm:ss AM/PM";
+      } else if (value.toString().length > 13) {
+        ct.fa = "yyyy-MM-dd hh:mm AM/PM";
+      } else {
+        ct.fa = "yyyy-MM-dd";
+      }
+    } else {
+      ct.fa = "yyyy-MM-dd";
+    }
+
     ct.t = "d";
     m = SSF.format(ct.fa, v);
   } else {
diff --git a/packages/core/src/modules/ssf.js b/packages/core/src/modules/ssf.js
index 5b9f5a72..0d24b4c3 100644
--- a/packages/core/src/modules/ssf.js
+++ b/packages/core/src/modules/ssf.js
@@ -1,6 +1,9 @@
 /* eslint-disable */
 import numeral from "numeral";
 
+const JAN_1_1900 = 1;
+const DEC_31_9999 = 2958465;
+
 var SSF = {};
 const make_ssf = function make_ssf(SSF) {
   SSF.version = "0.11.2";
@@ -201,8 +204,49 @@ const make_ssf = function make_ssf(SSF) {
     return [q, sgn * P - q * Q, Q];
   }
 
+  function convert_to_seconds(timeStr) {
+    let hours, minutes;
+
+    if (timeStr.includes("AM") || timeStr.includes("PM")) {
+      // Handle hh:mm AM/PM format
+      const match = timeStr.match(/^(\d{1,2}):(\d{2})\s?(AM|PM)$/i);
+      if (!match) return NaN;
+
+      hours = parseInt(match[1], 10);
+      minutes = parseInt(match[2], 10);
+      const period = match[3].toUpperCase();
+
+      if (hours < 1 || hours > 12 || minutes < 0 || minutes >= 60) {
+        return NaN;
+      }
+
+      // Convert to 24-hour format
+      if (period === "PM" && hours !== 12) {
+        hours += 12;
+      } else if (period === "AM" && hours === 12) {
+        hours = 0;
+      }
+    } else {
+      // Handle hh:mm format
+      const [hourPart, minutePart] = timeStr.split(":").map(Number);
+      hours = hourPart;
+      minutes = minutePart;
+
+      if (
+        isNaN(hours) || isNaN(minutes) ||
+        hours < 0 || hours > 23 ||
+        minutes < 0 || minutes >= 60
+      ) {
+        return NaN;
+      }
+    }
+
+    // Convert to seconds
+    return hours * 3600 + minutes * 60;
+  }
+
   function parse_date_code(v, opts, b2) {
-    if (v > 2958465 || v < 0) return null;
+    if (v > DEC_31_9999 || v < JAN_1_1900) return null;
     var date = v | 0,
       time = Math.floor(86400 * (v - date)),
       dow = 0;
@@ -245,6 +289,11 @@ const make_ssf = function make_ssf(SSF) {
       if (date < 60) dow = (dow + 6) % 7;
       if (b2) dow = fix_hijri(d, dout);
     }
+
+    if (v?.includes?.(':') && isNaN(time)) {
+      time = convert_to_seconds(v);
+    }
+
     out.y = dout[0];
     out.m = dout[1];
     out.d = dout[2];
diff --git a/packages/core/src/modules/validation.ts b/packages/core/src/modules/validation.ts
index 88ae6d28..511fc559 100644
--- a/packages/core/src/modules/validation.ts
+++ b/packages/core/src/modules/validation.ts
@@ -38,11 +38,15 @@ export function isRealNum(val: any) {
   return !Number.isNaN(Number(val));
 }
 
-function checkDateTime(str: string) {
+function checkDateTime(str: string, format: string) {
   const reg1 =
-    /^(\d{4})-(\d{1,2})-(\d{1,2})(\s(\d{1,2}):(\d{1,2})(:(\d{1,2}))?)?$/;
+    format === "24"
+      ? /^(\d{4})-(\d{1,2})-(\d{1,2})(\s(\d{1,2}):(\d{1,2})(:(\d{1,2}))?)?$/
+      : /^(\d{4})-(\d{1,2})-(\d{1,2})(\s(\d{1,2}):(\d{1,2})(:(\d{1,2}))?)?\s?(AM|PM)?$/;
   const reg2 =
-    /^(\d{4})\/(\d{1,2})\/(\d{1,2})(\s(\d{1,2}):(\d{1,2})(:(\d{1,2}))?)?$/;
+    format === "24"
+      ? /^(\d{4})\/(\d{1,2})\/(\d{1,2})(\s(\d{1,2}):(\d{1,2})(:(\d{1,2}))?)?$/
+      : /^(\d{4})\/(\d{1,2})\/(\d{1,2})(\s(\d{1,2}):(\d{1,2})(:(\d{1,2}))?)?\s?(AM|PM)?$/;
 
   if (!reg1.test(str) && !reg2.test(str)) {
     return false;
@@ -75,11 +79,11 @@ function checkDateTime(str: string) {
   return true;
 }
 
-export function isdatetime(s: any) {
+export function isdatetime(s: any, format: string = "24") {
   if (s === null || s.toString().length < 5) {
     return false;
   }
-  if (checkDateTime(s)) {
+  if (checkDateTime(s, format)) {
     return true;
   }
   return false;