public static JwtBuilder IssuedAt(this JwtBuilder builder, DateTime time) => builder.AddClaim(ClaimName.IssuedAt, UnixEpoch.GetSecondsSinceAsString(time));
public static JwtBuilder ExpirationTime(this JwtBuilder builder, DateTime time) => builder.AddClaim(ClaimName.ExpirationTime, UnixEpoch.GetSecondsSinceAsString(time));
public static JwtBuilder NotBefore(this JwtBuilder builder, DateTime time) => builder.AddClaim(ClaimName.NotBefore, UnixEpoch.GetSecondsSinceAsString(time));