feat: add convert epoch to human-readable date

Author: kastnerorz

commands/conversions/human-date-to-epoch.sh

@@ -0,0 +1,23 @@
+#!/bin/bash
+
+# Required parameters:
+# @raycast.schemaVersion 1
+# @raycast.title Convert Human-Readable Date To Epoch
+# @raycast.mode silent
+#
+# Optional parameters:
+# @raycast.icon ⏱
+# @raycast.packageName Conversions
+# @raycast.needsConfirmation false
+# @raycast.argument1 {"type": "text", "placeholder": "Date"}
+#
+# Documentation:
+# @raycast.description Convert human-readable date to timestamp epoch.
+# @raycast.author Siyuan Zhang
+# @raycast.authorURL https://github.com/kastnerorz
+
+date=${1}
+epoch=$(echo `date -jRuf "%F %T" "$date" "+%s"`)
+echo -n "$epoch" | pbcopy
+
+echo "Converted $date to $epoch"