NEVER use
```
DateTime.parse()
```
or
```
DateTime.tryParse()
```
directly in model or UI code.
NEVER call
```
.toLocal()
```
outside of
```
TimeUtils
```
.

createdAt: TimeUtils.parseUtcTime(json['created_at'] as String?),

createdAt: DateTime.parse(json['created_at'] as String),
createdAt: DateTime.tryParse(json['created_at'] as String? ?? ''),

Project Guidelines

Language

Use Chinese for all communication and code comments.

When adding or updating dependencies in

pubspec.yaml

All time strings from the Discourse API are in UTC format. The project uses a unified

TimeUtils

class (

lib/utils/time_utils.dart

) for all time parsing and formatting.

MUST use
```
TimeUtils.parseUtcTime()
```
to parse any time string from the API. It handles UTC-to-local conversion internally.

MUST use

TimeUtils.formatRelativeTime()

formatDetailTime()

formatCompactTime()

formatShortDate()

formatFullDate()

for display.

NEVER use
```
DateTime.parse()
```
or
```
DateTime.tryParse()
```
directly in model or UI code.
NEVER call
```
.toLocal()
```
outside of
```
TimeUtils
```
.

createdAt: TimeUtils.parseUtcTime(json['created_at'] as String?),

createdAt: DateTime.parse(json['created_at'] as String),
createdAt: DateTime.tryParse(json['created_at'] as String? ?? ''),