Date Time (chrono)

This section focuses on "time handling in practice" for the Rust backend in enterprise systems, based on chrono/chrono-tz:

• Type selection: UTC/Local/Naive (timezone-naive)
• Parsing & formatting: RFC3339/ISO8601, timestamps (seconds/milliseconds)
• Timezone conversion & DST (Daylight Saving Time) considerations
• Sea-ORM / database field mapping
• Task scheduling, timeouts, TTL expiration
• Best practices for JSON serialization