Why delete file when ts_diff_mean.seconds > 64800

[SamJohn27149]

In other words, why is daily data with df_diff_mean < 18 hours considered normal?
In bcutils\migrate.py line 37
elif ts_diff_mean.days == 1: if ts_diff_mean.seconds > 64800: # 18hrs - arbitrary, test with dry_run delete( full_path, dry_run, reason=f"ts_diff_mean.seconds > 64800 ({ts_diff_mean.seconds})", ) else: rename(file, full_path, "Day", prices_dir, dry_run)