In order to address your question, it's important to clarify a few concepts related to time dilation and the freezing or stopping of time.
Firstly, time dilation is a phenomenon predicted by the theory of relativity, which states that time can pass at different rates for observers in relative motion or in different gravitational fields. This effect has been experimentally confirmed and is an integral part of our understanding of the universe.
When we talk about time dilation, we usually refer to situations where two observers are moving relative to each other or experiencing different gravitational fields. For example, if an observer is traveling at a high velocity or is in a strong gravitational field, time will pass more slowly for them compared to a stationary observer in a weaker gravitational field.
Now, freezing or stopping time is a concept often found in science fiction or imaginative scenarios. In such scenarios, the idea is that time ceases to flow for a particular individual or object, while everything else continues as normal. However, it's important to note that freezing or stopping time is purely speculative and not supported by current scientific understanding.
If we assume, for the sake of discussion, that time could be frozen for an individual, it wouldn't be possible to quantify or compare the passage of time between the frozen individual and the rest of the universe. Time would have come to a halt for that person, and therefore there would be no frame of reference for comparison. The concept of time dilation, as understood in physics, wouldn't apply in this scenario.
In the context of time dilation, the maximum time dilation factor that can be achieved, according to the theory of relativity, is not limited to a specific ratio such as 1:2. In fact, the time dilation factor can become arbitrarily large as an observer approaches the speed of light or approaches a black hole's event horizon, for instance. The actual time dilation experienced by an observer depends on their relative velocity or the gravitational field they are in, among other factors.
To summarize, freezing or stopping time is a speculative concept not supported by current scientific understanding. Time dilation, as described by the theory of relativity, occurs in specific situations involving relative motion or gravitational fields and is not tied to the idea of freezing time.