Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
since at that time
Grammar usage guide and real-world examplesUSAGE SUMMARY
"since at that time" is a correct and usable phrase in written English.
It is used to introduce a clause that expresses the reason why something happened after another event or at a certain point in the past. For example: "I hadn't seen my old friend since at that time we graduated college, so it was a pleasant surprise when we bumped into each other in the street."
✓ Grammatically correct
News & Media
Science
Encyclopedias
Wiki
Alternative expressions(2)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
37 human-written examples
This wasn't an unusual pursuit, since at that time I was a stranger to adult life everywhere I went.
News & Media
Today's audience can perhaps understand the adultery that is rampant in the Decameron, especially since, at that time, most marriages were still arranged by the families.
News & Media
"God could have said, for instance, 'You can screw, but only to make babies,' especially since at that time there weren't enough people in the world.
News & Media
Especially since at that time Protestant culture was dominant in the country and then, as now, there are Protestant churches and political parties that do not allow their women to hold a paid job, like being a parliamentarian.Nanke Meuter.
News & Media
Dante's father died prior to 1283, since at that time Dante, having come into his majority, was able as an orphan to sell a credit owned by his father.
Encyclopedias
"Quite frankly, Wen Ho Lee being a suspect at that point is only natural, since at that time they had been looking at him for 13 years," said Dr. Hecker, then the Los Alamos director.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
20 human-written examples
Since husbands at that time controlled family property, she technically had nothing to bequeath.
News & Media
This sounds, well, fishy, since potatoes at that time were presumably still restricted to the Altiplano in South America.
News & Media
She's told me since that at that time, she had visions of dressing the baby up in beautiful outfits, putting it in a stroller and sashaying down the boulevard.
News & Media
Since he was at that time not referred to as magister, or independent master craftsman, Pisano must still have been in his teens.
Encyclopedias
Since the city at that time paid a quarter of the zoo's costs, there was no possibility of saying no.
News & Media
Expert writing Tips
Best practice
When using "since at that time", ensure the temporal relationship is clear. Avoid ambiguity by explicitly stating the point in the past you are referencing.
Common error
Avoid using "since at that time" in simple sentences where "because" or "as" would suffice. This can make your writing sound unnecessarily verbose.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "since at that time" functions as a subordinating conjunction, introducing a dependent clause that provides a reason or explanation for the main clause. As Ludwig AI explains, it highlights causality in relation to a particular point in the past. Examples show its use in various contexts to connect events and their causes.
Frequent in
News & Media
40%
Science
30%
Wiki
15%
Less common in
Encyclopedias
10%
Formal & Business
5%
Reference
0%
Ludwig's WRAP-UP
In summary, "since at that time" is a grammatically correct and commonly used phrase that functions as a causal connector. It's used to explain events by referencing conditions or reasons specific to a point in the past, as Ludwig AI confirms. While it's most frequently found in news, media, and scientific writing, it can be considered neutral to formal in tone. When using "since at that time", ensure that the temporal relationship is clear and avoid overuse in simple sentences where shorter alternatives like "because" or "as" suffice. Remember, it provides additional context and clarity compared to other causal connectors.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
because then
Replaces "since at that time" with a more concise expression of causality and temporal context.
given the circumstances then
Highlights the specific conditions that led to the outcome at that particular time.
considering the situation at that point
Emphasizes a reflective assessment of the conditions leading up to the event.
due to the conditions then prevailing
Uses more formal language to indicate causality based on existing conditions.
in light of what was happening then
Focuses on unfolding events influencing the subsequent outcome.
as a result of the situation then
Directly states the outcome as a consequence of the prior situation.
because of the state of affairs at that moment
Highlights a broader context impacting the causal relationship.
taking into account the climate then
Considers an overall atmosphere influencing the events at that time.
given what was going on back then
Emphasizes the immediate circumstances affecting causality.
considering things as they stood then
Focuses on the specific conditions and arrangements contributing to the outcome.
FAQs
How can I use "since at that time" in a sentence?
Use "since at that time" to introduce a reason or cause related to a specific point in the past. For example: "The project was delayed, "since at that time" the funding was uncertain."
What's a simpler way to say "since at that time"?
You can often replace "since at that time" with simpler alternatives like "because then" or "as". The best choice depends on the specific context.
Is it redundant to use "since" and "at that time" together?
While "since" already implies a temporal connection, "at that time" can add emphasis or specificity to the time frame you are referencing, so the combination isn't necessarily redundant. The decision depends on context and desired clarity.
Which is more appropriate, "since at that time" or "because then"?
"Since at that time" is typically used to connect events with a more extended timeframe in mind, whereas "because then" is a simpler, more direct causal connector related to a specific moment.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested