createdAt timestamp confusion

Sendbird Chat API/SDK Unity
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1

Hi,

I’m currently implementing chat functionality using the Unity SDK.

I am trying to understand the value that the SDK returns for message.createdAt.

I am trying to construct a DateTime object so that I can format the timestamp.

Normally I would just do this as
var timeStamp = new DateTime(message.createdAt);

However this is giving me a totally wrong value:
Timestamp: 1/2/0001 9:00:34 PM

I imagine this means that the SDK is parsing this value incorrectly, but maybe there is something I am missing? I have tried to query the REST platform directly to see if I can make sense of the data coming in, but no luck so far.

Any advice is appreciated!

Thanks

2

As you might know, Sendbird provides the timestamp as the form of Unix Time(Unix time - Wikipedia), mainly in milliseconds.
https://sendbird.com/docs/calls/v1/platform-api/guides/miscellaneous#2-timestamps

Could you try to use AddSeconds() like below?
DateTime start = new DateTime(1970, 1, 1, 0, 0, 0, 0); //from start epoch time
start = start.AddSeconds(message.createdAt/1000); //add the seconds to the start DateTime

3

Hi thanks for that.

The code above does work, but can be written cleaner like this (.net 4.6+)
timestamp = DateTimeOffset.FromUnixTimeMilliseconds(message.CreatedAt).UtcDateTime;

As .NET does not have real support for Unix Timestamps, you might consider making this conversion part of the SDK and add another property for unixTime

4

Hi,

We really appreciate your feedback!
I will let our engineering team know that.