How to Get the Unix Timestamp in Milliseconds Using Go?

Question: How can I obtain the Unix timestamp in milliseconds in Go?

Explanation:

The current Go function that retrieves the Unix timestamp, time.Now().UnixNano(), provides a value in nanoseconds. However, your requirement specifies converting this value to milliseconds.

Answer:

Currently, the time package in Go provides two convenient functions:

• UnixMicro() for converting to microseconds
• UnixMilli() for converting to milliseconds

Therefore, for Go versions 1.17 and later, the recommended solution is:

timestamp := time.Now().UnixMilli()

For Go versions 1.16 and earlier:

You can divide the nanosecond timestamp by 1e6, which represents the number of nanoseconds in a millisecond:

timestamp := time.Now().UnixNano() / 1e6

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