Best way to handle decoupling in Go with similar structs in two different packages but subitem in struct making it difficult?

I'm relatively new to go and have been doing a massive rewrite trying to reduce my dependency graph as much as possible. I'm pretty happy with where I got it but there is this one part I am not sure how to best handle. If the answer is, "You are going to have that dependency between the two", that's fine too, I'm just looking for a good approach, not expecting miracles.

So below I have two packages, a & b, and they both have identical structs. Normally you could convert one to the other in main but each has a subitem which is also a struct and that's stopping Go from allowing it even though the subitems have identical signatures.

One way would be to just reference A.TzConfig in the struct in B and let there be a dependency but that's what I am trying to get rid of.

I guess another way is to create an interface and then get the values of Loc through methods, I think that would work but I haven't tried it yet as that means creating methods for something that's just a structure of data (the actual structure has a lot of items, I reduced it to the essentials for simplicity here) which seems like overkill.

I could move TzConfig into a third module so they would both reference that instead of one referencing the other and that's about all I have thought of.

So my question is, from someone with a real experience, what would be the best way to deal with this scenario in go?

I should mention that the reason they have duplicated structs was just because I was trying to break the dependency between them, the original code just had the struct in one package and the other package referencing it.

package a

type Cfg struct {
	Addr                 string
	Loc                  TzConfig
}

type TzConfig struct {
	String string
	TZ     *time.Location `validate:"noDescent"`
}

func GetCfg() Cfg {
	t, _ := time.LoadLocation(`MST`)
	return Cfg{
		Addr: "abc",
		Host: "a.bc.d",
		Loc:  config.TzConfig{
			String: "MST",
			TZ:     t,
		},
	}
}

package b

type Cfg struct {
	Addr                 string
	Loc                  TzConfig
}

type TzConfig struct {
	String string
	TZ     *time.Location `validate:"noDescent"`
}

func DoSomethingWithConfig(c Cfg) {
	fmt.Println(c)
}

package main

main() {
	 c := a.GetCfg()
	 d := b.DoSomethingWithConfig(b.Cg(c))
	 fmt.Println(d)
}

IMHO, the suggestion provided by @BurakSerdar are completely fine and fits very well for your scenario. I've rewritten the code in this way.

package common

package common

import "time"

type Cfg struct {
	Addr string
	Loc  TzConfig
}

type TzConfig struct {
	String string
	TZ     *time.Location `validate:"noDescent"`
}

Here, you should put the common structs, functions, methods, and so on.

package a

package a

import (
	"dependencies/common"
	"time"
)

type Cfg struct {
	common.Cfg
	Host string
}

func GetCfg() Cfg {
	t, _ := time.LoadLocation(`MST`)
	return Cfg{
		Cfg: common.Cfg{
			Addr: "abc",
			Loc: common.TzConfig{
				String: "MST",
				TZ:     t,
			},
		},
		Host: "a.bc.d",
	}
}

Here, you have the specific code related to the package a that inherits the shared code from the common package, as you can see in the import section.
> Please note that I used the structs embedding feature to get the shared fields defined within the common package.

package b

package b

import (
	"dependencies/common"
	"fmt"
)

func DoSomethingWithConfig(c common.Cfg) string {
	return fmt.Sprint(c)
}

Here, there is nothing special to mention.

package main

package main

import (
	"dependencies/a"
	"dependencies/b"
	"fmt"
)

func main() {
	c := a.GetCfg()
	d := b.DoSomethingWithConfig(c.Cfg)
	fmt.Println(d)
}

Here, the code should be pretty straightforward. I imported packages a and b to exploit their functionalities.

Again, I'd like to be clear that this is a subjective topic, hence there isn't a silver bullet solution. To me, looks neat and clear. I would have chosen this way for sure. Let me know and thanks!