Merge pull request #15 from jeremywillans/master

Add Friendly Timestamp Attribute

README.md

@@ -72,6 +72,7 @@ return msg;
 | timeout | string | none | Attribute **required** for `due` config option. `minutes`, `days`, `weeks`, `months`, `years`.
 | text | object | none | A list defining the text displayed. `minute(s)`, `day(s)`, `week(s)`, `month(s)`, `year(s)`, `ago`, `less_than`, `more_than`, `due_by`, `over_by`.
 | due | boolean | false | Sets the card to display the due time based on `timeout` value set in the config.
+| locale | string | 'en-us' | Sets the friendly timestamp locale.
 | unit_of_measurement | string | none | Define the unit of measurement of the sensor.
 | icon | string | mdi:checkbox-marked | Define a custom icon for this sensor.
 | undo_timeout | number | 15 | Time until undo button times out in seconds.

src/check-button-card.ts

@@ -88,7 +88,8 @@ class CheckButtonCard extends HTMLElement {
         over_by: 'over by'
       },
       display_limit: null,
-      due: false
+      due: false,
+      locale: 'en-us'
     };
 
     // Merge text objects
@@ -605,6 +606,7 @@ class CheckButtonCard extends HTMLElement {
     const config = this._config;
     let payload: any = {};
     payload.timestamp = timestamp;
+    payload.timestamp_friendly = new Date(timestamp*1000).toLocaleString(config.locale);
     payload.timeout = config.timeout;
     if (config.timeout) {
       payload.timeout_timestamp = this._convertToSeconds(config.timeout) + Number(timestamp);