diff --git a/docs/appendix/01_use_cases.md b/docs/appendix/01_use_cases.md
index c117f5b..ff0f0ac 100644
--- a/docs/appendix/01_use_cases.md
+++ b/docs/appendix/01_use_cases.md
@@ -13,4 +13,6 @@
 
 | 文章标题  | 简要介绍  |
 |---|---|
-| [Python With 关键字和语句](https://www.ossez.com/t/python-with/13387)  | 针对 with 关键字的使用进行了一些解答。  |
+| [Python With 关键字和语句](https://www.ossez.com/t/python-with/13387)  | 针对 with 关键字的使用进行了一些解答  |
+| [Python DataTime 日期处理](https://www.ossez.com/t/python-datatime/13388)  | 关于日期函数处理的一些小的介绍和讨论 |
+| [Python 日期格式和时间以及当前时间和时间戳](https://www.ossez.com/t/python/13389)  | 关于时间和当前时间的时间戳的获取 |
diff --git a/requirements.txt b/requirements.txt
index df5ae38..53a6226 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1,4 @@
 yfinance==0.1.54
+
+python-dateutil~=2.8.1
+setuptools~=54.0.0
\ No newline at end of file
diff --git a/tests/DateTime.py b/tests/DateTime.py
new file mode 100644
index 0000000..0622a15
--- /dev/null
+++ b/tests/DateTime.py
@@ -0,0 +1,24 @@
+# -*- coding: utf-8 -*-
+# Python script to Process DateTime
+# Author - HoneyMoose
+
+import datetime
+
+json_filename = 'resources/black_rock_test.json'
+
+today = datetime.date.today()
+print("Today's date:", today)
+
+# 从字符串创建日期对象
+date_user = datetime.datetime.strptime('1/1/2021', '%m/%d/%Y')
+print("格式化后的日期对象：", date_user)
+
+# 日期对象通过对格式化输出
+print("日期对象格式化输出 1 =", today.strftime("%d/%m/%Y"))
+print("日期对象格式化输出 2 =", today.strftime("%B %d, %Y"))
+print("日期对象格式化输出 3 =", today.strftime("%m/%d/%y"))
+print("日期对象格式化输出 4 =", today.strftime("%b-%d-%Y"))
+
+# 当前时间戳
+now = datetime.datetime.now()
+print("当前时间戳:", now)
diff --git a/tests/FileWith.py b/tests/FileWith.py
index 221189c..93e7efb 100644
--- a/tests/FileWith.py
+++ b/tests/FileWith.py
@@ -1,3 +1,4 @@
+# -*- coding: utf-8 -*-
 # Python script to Read file from JSON and convert to YAML
 # Author - HoneyMoose (https://www.ossez.com)
 
diff --git a/tests/Json2Yaml.py b/tests/Json2Yaml.py
index b13090a..0862022 100644
--- a/tests/Json2Yaml.py
+++ b/tests/Json2Yaml.py
@@ -1,22 +1,36 @@
 # Python script to Read file from JSON and convert to YAML
-# Author - HoneyMoose (https://www.ossez.com)
+# Author - yucheng.hu@insight.com
 
+import datetime
 import json
 
 import ruamel.yaml as yaml
+from dateutil.relativedelta import relativedelta
 
 json_filename = 'resources/black_rock_test.json'
 yaml_filename = 'resources/black_rock_test.yaml'
 
+ELIGIBLE_FOR_RETIREMENT = 'eligible_for_retirement'
+
+
+# Get Difference Years
+def get_age(data_input):
+    date_user = datetime.datetime.strptime(data_input, '%m/%d/%Y')
+    date_current = datetime.datetime.now()
+
+    time_difference = relativedelta(date_current, date_user)
+    return time_difference.years
+
+
 # Read and process JSON
 with open(json_filename) as json_file:
     data = json.load(json_file)
-    print(type(data))
+    data_bod = data['date_of_birth']
 
-    for data_dict in data:
-        label_id = data_dict['label_id']
-        print(str(label_id))
-json_file.close()
+    if get_age(data_bod) >= 65:
+        data[ELIGIBLE_FOR_RETIREMENT] = True
+    else:
+        data[ELIGIBLE_FOR_RETIREMENT] = False
 
 # Write to YAML
 with open(yaml_filename, 'w') as yaml_file:
diff --git a/tests/resources/black_rock_test.json b/tests/resources/black_rock_test.json
index b608e34..e26a7fc 100644
--- a/tests/resources/black_rock_test.json
+++ b/tests/resources/black_rock_test.json
@@ -1,10 +1,5 @@
-[
-  {
-    "label_id": 603,
-    "user_name": "YUCHENG-L1"
-  },
-  {
-    "label_id": 604,
-    "user_name": "YUCHENG-L2"
-  }
-]
\ No newline at end of file
+{
+  "first_name": "John",
+  "last_name": "Doe",
+  "date_of_birth": "1/1/2021"
+}
\ No newline at end of file
diff --git a/tests/resources/honeymoose_test.json b/tests/resources/honeymoose_test.json
index b608e34..e26a7fc 100644
--- a/tests/resources/honeymoose_test.json
+++ b/tests/resources/honeymoose_test.json
@@ -1,10 +1,5 @@
-[
-  {
-    "label_id": 603,
-    "user_name": "YUCHENG-L1"
-  },
-  {
-    "label_id": 604,
-    "user_name": "YUCHENG-L2"
-  }
-]
\ No newline at end of file
+{
+  "first_name": "John",
+  "last_name": "Doe",
+  "date_of_birth": "1/1/2021"
+}
\ No newline at end of file