> ## Documentation Index
> Fetch the complete documentation index at: https://docs.blnkfinance.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Time-based condition examples

> Watch DSL examples that use time context from transaction metadata.

<Note>Blnk Watch is currently in beta. [Send us a message](mailto:support@blnkfinance.com)</Note>

These examples depend on time context that your application has already added to metadata, such as hour of day or day of week.

That approach keeps the rules portable while letting you localize time logic upstream when needed.

### Late night transactions

This rule reviews larger transactions that occur late at night. It is useful for flagging activity that lands outside a customer's normal operating window without blocking all after-hours traffic.

```bash LateNightTransactions.ws theme={"system"}
rule LateNightTransactions {
  description "Flags large transactions that occur late at night."

  when metadata.hour_of_day >= 21
   and amount > 1000

  then review
       score   0.6
       reason  "Large transaction during late-night hours"
}
```

### Review Christmas transactions

This rule reviews transactions that occur on Christmas Day. It is a simple seasonal pattern you can adapt for holidays, maintenance windows, or business-specific blackout periods.

```bash ReviewChristmasTransactions.ws theme={"system"}
rule ReviewChristmasTransactions {
  description "Flags transactions that occur on Christmas Day."

  when metadata.month_of_year == 12
   and metadata.day_of_month == 25

  then review
       score   0.6
       reason  "Transaction occurred on Christmas Day"
}
```

### Unusual transaction time

This rule reviews large transactions that happen in the early-morning window between 1 AM and 5 AM. It is a good template when you want to tune thresholds based on hours that are uncommon for a customer segment or product line.

```bash UnusualTransactionTime.ws theme={"system"}
rule UnusualTransactionTime {
  description "Flags large transactions during unusual early-morning hours."

  when metadata.hour_of_day >= 1
   and metadata.hour_of_day < 5
   and amount > 1000

  then review
       score   0.6
       reason  "Large transaction during unusual early-morning hours"
}
```

### Weekend transaction check

This rule reviews large transactions that occur on a weekend. It is a practical pattern for products where genuine activity is mostly weekday-driven and weekend spikes deserve a closer look.

```bash WeekendTransactionCheck.ws theme={"system"}
rule WeekendTransactionCheck {
  description "Flags large transactions that occur on weekends."

  when metadata.day_of_week in (0, 6)
   and amount > 5000

  then review
       score   0.4
       reason  "Large weekend transaction flagged for review"
}
```

***

See also [Setting conditions](/watch/rules/setting-conditions) and [Defining verdicts](/watch/rules/defining-verdicts).

***

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