Added "From Blockchain Time" / "To Obsolete Time"

I hardly believe it myself, but this "just werkded" (TM) the first time

templates/index.html.tera

@@ -3,7 +3,7 @@
     <h1>Welcome to Blockchain Time</h1><p>A.K.A. Big Tim</p>
     <div>
       <h2>Convert to Blockchain Time</h2>
-      <form id="form" method="GET" action="to_blockchain_time">
+      <form id="to_blocktmie" method="GET" action="to_blockchain_time">
         <label for="input_datetime">Input DateTime (in UTC only currently)</label>
         <input type="datetime-local" id="input_datetime" name="input_datetime">
         <input type="submit" value="Submit">
@@ -12,7 +12,18 @@
     <div>
       <h2>Convert from Blockchain Time</h2>
       <p><b>Booo</b> why are you going this way??? Don't you know your blocktimes??</p>
-      <p><b><i><a href="#">UNIMPLEMENTED</a></i></b></p>
+      <form id="to_obsolete_time" method="GET" action="to_obsolete_time">
+        <label for="blockheight">Input Block Height</label>
+        <input type="int" id="blockheight" name="blockheight">
+        <label for="blockchain">Blockchain</label>
+        <select if="blockchain" name="blockchain">
+          <option value="BSV">BSV</option>
+          <option value="BTC">BTC</option>
+          <option value="XMR">XMR</option>
+          <option value="ETH">ETH</option>
+        </select>
+        <input type="submit" value="I'm a weenie that doesn't know my blocktimes">
+      </form>
     </div>
     <div class="cur_blocks">
       <h2>Latest Block Heights and Times Cached</h2>