20251218T154200Z

20251218T154200Z is a timestamp expressed in the ISO 8601 format, representing the moment 15:42:00 on December 18, 2025 in Coordinated Universal Time (UTC). The 'T' separates the date and time, and the trailing 'Z' indicates Zulu time, i.e., a time zone offset of zero hours. In many data systems this compact form is used to encode precise instants without ambiguity across time zones.

Component breakdown: year 2025; month 12; day 18; hour 15; minute 42; second 00; Z denotes UTC.

Typical uses include logging and event recording, data interchange in APIs and files, scheduling and versioning, and in scientific or industrial contexts where standards-based timestamps are essential.

Interpretation notes: To convert to local time, the offset from UTC must be applied. The Z suffix eliminates daylight saving ambiguity. Some systems support sub-second precision or fractional seconds, which would modify the tail of the string (for example, 20251218T154200.123Z).

Related ISO 8601 representations include 2025-12-18T15:42:00Z or 2025-12-18T15:42:00+00:00, and alternative compact forms such as 20251218T154200. These formats are widely used in databases, logging, and APIs to ensure consistent time stamping.