1. Added date time utils.

2. Format date to string.
3. Format string to date.
4. Get time from date or dateString.
5. Get time difference.
6. Get is today or is yesterday.
7. Get time ago.
8. Convert milli seconds to time or vice versa.
9. Format Date to dateString into formats like yyyy-MM-dd HH:mm:ss or other.

Author: amitjangid80

.idea/misc.xml

@@ -16,7 +16,7 @@ allprojects{
 ```
 dependencies {
     ...
-    implementation 'com.github.amitjangid80:multiutillib:v1.0.0'
+    implementation 'com.github.amitjangid80:multiutillib:v1.1.1'
 }
 ```
 
@@ -34,6 +34,6 @@ dependencies {
 	<dependency>
 	    <groupId>com.github.amitjangid80</groupId>
 	    <artifactId>multiutillib</artifactId>
-	    <version>v1.0.0</version>
+	    <version>v1.1.1</version>
 	</dependency>
 ```

README.md

@@ -0,0 +1,44 @@
+package com.amit.datetime;
+
+/**
+ * DateTimeFormat
+ *  Patterns used to parse given date {@link DateTimeUtils} will use those pattern
+ *
+**/
+@SuppressWarnings("WeakerAccess")
+public class DateTimeFormat
+{
+    /**
+     * Typical MySqL/SQL dateTime format with dash as separator
+     */
+    public static final String DATE_TIME_PATTERN_1  = "yyyy-MM-dd HH:mm:ss";
+
+    /**
+     * Typical MySqL/SQL dateTime format with slash as separator
+     */
+    public static final String DATE_TIME_PATTERN_2  = "dd/MM/yyyy HH:mm:ss";
+
+    public static final String DATE_TIME_PATTERN_3  = "dd-MM-yyyy HH:mm:ss";
+
+    /**
+     * Typical MySqL/SQL date format with dash as separator
+     */
+    public static final String DATE_PATTERN_1 = "yyyy-MM-dd";
+
+    /**
+     * Typical MySqL/SQL date format with slash as separator
+     */
+    public static final String DATE_PATTERN_2 = "dd/MM/yyyy";
+
+    public static final String DATE_PATTERN_3 = "dd-MM-yyyy";
+
+    /**
+     * Time format full in 24 hours format
+     */
+    public static final String TIME_PATTERN_1 = "HH:mm:ss";
+
+    /**
+     * Time format with am/pm in 12 hours format
+    **/
+    public static final String TIME_PATTERN_2 = "hh:mm a";
+}

app/src/main/java/com/amit/datetime/DateTimeFormat.java

@@ -0,0 +1,45 @@
+package com.amit.datetime;
+
+import android.content.Context;
+
+import java.util.Date;
+
+/**
+ * DateTimeStyle
+ *
+ * Defined style for parsing date into string used by {@link DateTimeUtils#formatWithStyle(Date, DateTimeStyle)}}
+ * and also {@link DateTimeUtils#getTimeAgo(Context, Date, DateTimeStyle)}
+ *
+**/
+public enum DateTimeStyle
+{
+    /**
+     * Style full e.g Tuesday, June 13, 2017
+     */
+    FULL,
+
+    /**
+     * Style long e.g June 13, 2017
+     */
+    LONG,
+
+    /**
+     * Style medium e.g Jun 13, 2017
+     */
+    MEDIUM,
+
+    /**
+     * Style short e.g 06/13/17
+     */
+    SHORT,
+
+    /**
+     * Style for ago time e.g 3h ago
+     */
+    AGO_SHORT_STRING,
+
+    /**
+     * Style for ago time e.g 3 hours ago
+     */
+    AGO_FULL_STRING
+}

app/src/main/java/com/amit/datetime/DateTimeStyle.java

@@ -0,0 +1,36 @@
+package com.amit.datetime;
+
+/**
+ * DateTimeUnits
+ * Define units used by {@link DateTimeUtils#getDateDiff(Date, Date, DateTimeUnits)}
+ * and also {@link DateTimeUtils#formatDate(long, DateTimeUnits)}
+ *
+**/
+@SuppressWarnings("WeakerAccess")
+public enum DateTimeUnits
+{
+    /**
+     * Days
+     */
+    DAYS,
+
+    /**
+     * Hours
+     */
+    HOURS,
+
+    /**
+     * Minutes
+     */
+    MINUTES,
+
+    /**
+     * Seconds
+     */
+    SECONDS,
+
+    /**
+     * Milliseconds
+     */
+    MILLISECONDS,
+}