在gin-gionic中有没有可能改变默认的绑定时间戳格式？

package main

import (
    "github.com/gin-gonic/gin"
    "time"
)

type MyStruct struct {
    Timestamp time.Time `json:"timestamp" binding:"required"`
}

func main() {
    r := gin.Default()

    r.POST("/example", func(c *gin.Context) {
        var data MyStruct

        if err := c.ShouldBindJSON(&data); err != nil {
            c.JSON(400, gin.H{"error": err.Error()})
            return
        }

        c.JSON(200, gin.H{"timestamp": data.Timestamp.Format("2006-01-02 15:04:05")})
    })

    r.Run(":8080")
}