diff --git a/assets/core_team.nu b/assets/core_team.nu
new file mode 100644
index 0000000..ed623d9
--- /dev/null
+++ b/assets/core_team.nu
@@ -0,0 +1,12 @@
+def "nu core-team" [] {
+  [
+    [        'name',                'tz'];
+    [      'andres', 'America/Guayaquil']
+    [     'fdncred',        'US/Central']
+    [       'gedge',        'US/Eastern']
+    [          'jt',                'NZ']
+    [      'wycats',        'US/Pacific']
+    [     'kubouch',   'Europe/Helsinki']
+    ['elferherrera',     'Europe/London']
+  ]
+}
diff --git a/examples/date_in_local_timezones.nu b/examples/date_in_local_timezones.nu
new file mode 100644
index 0000000..2b8eb2c
--- /dev/null
+++ b/examples/date_in_local_timezones.nu
@@ -0,0 +1,25 @@
+source lib/scripts.nu
+source assets/core_team.nu
+
+let next_call = ("2021-08-31 15:00:21.290597200 -05:00" | str to-datetime);
+let people = (nu core-team | date local $next_call);
+
+def say [block] {
+  each {|person|
+    do $block (
+      $person | merge {
+        [[name]; [($person.name | str capitalize)]]
+      }
+    )
+  } | str collect (char newline)
+}
+
+$people | say {|person| $"($person.name)'s timezone is ($person.tz)"}
+
+$" 
+
+for the next call happening on ($next_call | date format '%c').. in their timezones they would be:
+
+"
+
+$people | say {|person| $"($person.name)'s: ($person.time)"}
diff --git a/language/playground.nu b/language/playground.nu
new file mode 100644
index 0000000..656bc73
--- /dev/null
+++ b/language/playground.nu
@@ -0,0 +1 @@
+source language/playground/lib.nu
\ No newline at end of file
diff --git a/language/playground/lib.nu b/language/playground/lib.nu
new file mode 100644
index 0000000..3b6f944
--- /dev/null
+++ b/language/playground/lib.nu
@@ -0,0 +1,55 @@
+def playground [topic, block] {
+  with-env [N 5 REJECT slow] {
+    echo $topic " tests" (char newline) | str collect
+
+    do $block
+  }
+}
+
+def scene [
+  topic: any
+  --tag: string
+  block: block
+] {
+  $"  ($topic)(char newline)"
+  do $block
+}
+
+def play [
+  topic: any
+  --tag: string
+  block: block
+] {
+  let title = $topic;
+
+  let is_tag_empty = ($tag | empty?);
+  let should_run_all = ($nu.env | default RUN_ALL $false | get RUN_ALL);
+
+  if $is_tag_empty {
+    do $block
+  } {
+    if $tag == $nu.env.REJECT && $should_run_all {
+      $"    ($topic) ... (ansi yellow)skipped(ansi reset) (char newline)"
+    } { do $block }
+  }
+}
+
+def expect [
+  actual: any
+  --to-be: any
+] {
+  let are_equal = ($actual | zip { $to-be } | pivot header_names values | each {|case|
+      let values = $case.values;
+
+      $values.0 == $values.1
+    }
+  | all? $it) && (($actual | get | length) == ($to-be | get | length));
+
+  let line = (if $true == $are_equal {
+    $"(ansi green)ok(ansi reset)(char newline)"
+  } {
+    $"(ansi red)failed(ansi reset)(char newline)"
+  });
+  
+  $"    ($title) ... ($line)"
+}
\ No newline at end of file
diff --git a/language/std.nu b/language/std.nu
new file mode 100644
index 0000000..4f3cd15
--- /dev/null
+++ b/language/std.nu
@@ -0,0 +1 @@
+source language/std/date.nu
diff --git a/language/std/date.nu b/language/std/date.nu
new file mode 100644
index 0000000..380997e
--- /dev/null
+++ b/language/std/date.nu
@@ -0,0 +1,7 @@
+def "date local" [now] {
+  insert time {|value|
+    let converted = ($now | date to-timezone $value.tz);
+
+    $converted | date format '%c'
+  }
+}
diff --git a/lib/scripts.nu b/lib/scripts.nu
new file mode 100644
index 0000000..1d49ee5
--- /dev/null
+++ b/lib/scripts.nu
@@ -0,0 +1 @@
+source language/std.nu
diff --git a/maintainer_time.nu b/maintainer_time.nu
deleted file mode 100644
index 22bc65f..0000000
--- a/maintainer_time.nu
+++ /dev/null
@@ -1,18 +0,0 @@
-let m_table = (
-    [
-    ['name', 'tz', 'time'];
-    ['andres' 'America/Guayaquil' ' ']
-    ['fdncred' 'US/Central' ' ']
-    ['gedge' 'US/Eastern' ' ']
-    ['jt' 'NZ' ' ']
-    ['wycats' 'US/Pacific' ' ']
-    ['kubouch' 'Europe/Helsinki' ' ']
-    ['elferherrera' 'Europe/London' ' ']
-    ]
-)
-let now = (date now)
-$m_table | update time {
-    each { |name|
-        $now | date to-timezone ($name | get tz) | date format '%c'
-    }
-}
diff --git a/tests/language/std/date.nu b/tests/language/std/date.nu
new file mode 100644
index 0000000..cb8e62b
--- /dev/null
+++ b/tests/language/std/date.nu
@@ -0,0 +1,38 @@
+source lib/scripts.nu
+
+def mock-now [] {
+  "2021-08-29 03:31:21.290597200 -05:00" | str to-datetime
+}
+
+def people [] {
+  [
+    [        'name',                'tz'];
+    [      'andres', 'America/Guayaquil']
+    [     'fdncred',        'US/Central']
+  ]
+}
+
+playground "std/date" {
+  
+  scene 'command: "date local"' {
+
+    play "adds times in local timezone" {
+
+      let expected_times = [
+        [time];
+        ["Sun Aug 29 03:31:21 2021"]
+        ["Sun Aug 29 03:31:21 2021"]
+      ];
+
+      let actual = (people |
+        date local (mock-now) |
+        select time
+      );
+ 
+      expect $actual --to-be $expected_times
+      
+    }
+
+  }
+
+}
diff --git a/tests/main.nu b/tests/main.nu
new file mode 100644
index 0000000..346b35f
--- /dev/null
+++ b/tests/main.nu
@@ -0,0 +1,2 @@
+source language/playground.nu
+source tests/language/std/date.nu