Why Does Go's `time.Time` Sometimes Output a ' m' String?

Unexpected Output from Time.Time: Understanding the Mysterious " m" String

In Go, the time.Now() function allows you to retrieve the current time. However, developers sometimes encounter unexpected output when printing the result. Specifically, some users may observe a lengthy string containing a " m" field, while others obtain a more concise version with only a time zone offset.

This disparity arises due to a change introduced in Go 1.9. Prior to this release, time.Time did not support monotonic clocks. Consequently, the output from time.Now() returned a simpler string.

However, with the addition of monotonic clock support in Go 1.9, the time.Time struct gained additional fields, including the aforementioned " m" string. This string represents the monotonic clock offset from the start of the epoch.

To mitigate this issue and obtain the desired standardized format, it is recommended to use the Format function instead of printing the raw data directly. The Format function allows you to specify a custom format for the output, ensuring consistency across different Go versions and preventing unexpected surprises in your code.

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