GeneralizedTime Local Time Format | Generated by AI
Question: How is “August 15, 2007, at 21:57:43.5 local time” represented using the GeneralizedTime type?
Answer:
The correct representation is C: 20070815215743.5.
Explanation:
The GeneralizedTime type is defined in ASN.1 (Abstract Syntax Notation One) and is used to represent date and time information. The format for GeneralizedTime is as follows:
- It includes the full four-digit year (
YYYY), followed by two-digit month (MM), day (DD), hour (HH), minute (MM), second (SS), and optionally fractional seconds. - If the time is specified in UTC, a
Zsuffix is appended to indicate Zulu time (UTC). However, if the time is given in local time without explicit timezone information, noZis added.
In this case:
- The date and time provided are “2007年8月15日，当地时间21点57分43.5秒” (August 15, 2007, at 21:57:43.5 local time).
- Since it is explicitly stated as local time and not UTC, the
Zsuffix should not be included. - Therefore, the correct format is
20070815215743.5, which matches option C.
Option D (20070815215743.5Z) would only be correct if the time were explicitly stated as UTC.
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