555-1 waitfor delay '0:0:58.446' --

It looks like a SQL Server statement using WAITFOR DELAY to pause execution.

• What it does: Wait for about 58.446 seconds before continuing.

• Time format: WAITFOR DELAY uses hh:mm:ss[.mmm]. The snippet '0:0:58.446' means 0 hours, 0 minutes, 58.446 seconds. It’s common to write it as '00:00:58.446'.

• The trailing “--” is a SQL comment symbol; anything after -- on that line is ignored.

Example (typical format): WAITFOR DELAY '00:00:58.446'; -- rest of your script here

Notes:

• The delay applies to the current session/connection. If you’re inside a transaction, locks held by that transaction remain until it completes.
• If you want a precise format, use two-digit hours and minutes: 'hh:mm:ss.mmm' (e.g., '00:00:58.446').

If you want, I can convert your exact line into a clean, minimal example or explain how to test it in SSMS.