Is the date always the account creation date?
No. A snowflake tells you when the object with that ID was created. For a user ID that's the account, for a server ID the server, for a message ID when it was sent. The ID itself doesn't say what kind of object it is – the tool can only tell from mentions like <@…> or from message links.
How do I find a user's or server's ID?
Enable Developer Mode under Settings → Advanced. Every right-click or long-press menu then shows “Copy ID”. For messages, “Copy Message Link” gives you the server, channel and message ID at once.
Why does my ID end in 000 or look like 1.17E+17?
Excel, Google Sheets and JavaScript only keep about 15–16 digits. An 18–19 digit Discord ID gets rounded and the last digits turn into zeros. The date is then roughly right, but the ID itself is broken. Format the column as text or copy the ID again from Discord.
Does the ID reveal the location or the person behind it?
No. Besides the timestamp a snowflake only holds worker, process and increment bits. They tell which Discord machine issued the ID, nothing about the user, their location or device.
What is date → snowflake for?
Many Discord API endpoints take before, after or around as an ID. Converting a date into the smallest or largest snowflake of that millisecond lets your bot fetch, for example, every message since 1 January.
Is my input sent anywhere?
No. The conversion is pure math ((id >> 22) + 1420070400000) and runs entirely in your browser. There is no request to Discord or to us.