问题

应该以这种格式发送时间

"2023-01-09T10:45:00.000+05:30"

我要解析成日期时间的字符串只是 "10:00 AM"
我尝试了以下方法 
```dart
 var GMTdateFormat = DateFormat('yyyy-MM-ddHH:mm:ss.000+05:30').format(
        DateTime.parse(
          (state as SlotRequestPopUpDataLoadedState)
              .slotStartTimingList
              .where((element) => element.isSelected == true)
              .map((e) => e.name)
              .toString(),
        ).toUtc(),
      );

但是没有生效

<details>
<summary>英文:</summary>

Time should be sent in this format 

"2023-01-09T10:45:00.000+05:30"

and the String which i have to parse into datetime is only "10:00 AM"
i tried doing this 

var GMTdateFormat = DateFormat('yyyy-MM-ddHH:mm:ss.000+05:30').format(
DateTime.parse(
(state as SlotRequestPopUpDataLoadedState)
.slotStartTimingList
.where((element) => element.isSelected == true)
.map((e) => e.name)
.toString(),
).toUtc(),
);

But it is not working

</details>


# 答案1
**得分**: 0

尝试这个：

```dart
// 输入: 10:00 AM
final time = DateFormat('hh:mm a').parse("10:00 AM");
final year = DateTime.now().year;
final month = DateTime.now().month;
final day = DateTime.now().day;
final dateString = DateFormat('$year-$month-${day}THH:mm:ss.SSS+05:30').format(time);
print(dateString); //2023-1-9T10:00:00.000+05:30

注意：以上代码部分没有进行中文翻译，仅提供原始英文代码。

//input: 10:00 AM
final time = DateFormat('hh:mm a').parse("10:00 AM");
final year = DateTime.now().year;
final month = DateTime.now().month;
final day = DateTime.now().day;
final dateString = DateFormat('$year-$month-${day}THH:mm:ss.SSS+05:30').format(time);
print(dateString); //2023-1-9T10:00:00.000+05:30